Very interesting. In the US, from my experience, if you're 'rich' then it is (generally) respected because you have worked hard and achieved in your life. Of course the children of these rich folk are by inheritance often wealthy. There is an argument that if people who have the attributes which make someone successful and wealthy (such as intelligence, drive, determination etc.) then theoretically these traits would be handed down to their offspring. In my experience, the offspring seem to be conditioned from a young age to believe that they are "brilliant" - boosting self confidence, something which is further compounded at top boarding schools. By the time these kids hit Uni, they are very self-assured and confident, and normally go to university with a pre-established group of friends who are normally very similar in possessing these traits.
I have noticed that a great number of these kids are very aware of how lucky they are to have allowances, cars etc. (yes, there are the dicks of course...) however it seems that through the self-confidence that has been developed within them throughout their lives is often mistaken by their peers with different backgrounds as arrogance and general snobbery.
In my experiences I've found that not to be the case, and I'm sure there are people who are jealous of certain people's wealth (I know that I would be) but on the most part it seems to be as someone wrote above, that people hate inequality. Having pondered this for some years, there seem to be a number of different stereotypes, if you will, if these 'rich haters'.
1.) "I was rich back home, but now I'm at Uni, I'm not rich comparatively, so I hate the rich" - pretty self explanatory.
2.) "I'm a Socialist Party Member and I Hate The Rich" - hate the inequality generally, and may or may not feel the same if they were the wealthy ones...
3.) "I hate these rich kids, they haven't worked for anything" - people who generally see themselves as intellectually superior to kids who seem to have much more money than them.
But it seems to me that over all one of the biggest anti 'rich' comments that I've heard is the snobbery comment. However, in my experience this classist view isn't present amongst the wealthy kids, in fact they tend to go about their day blissfully unaware that there is any kind of prejudice... whereby those who are less wealthy seem to have a lot of their time consumed by their hatred of those wealthier than themselves... consequently my only conclusion can be that despite every single argument ever presented against 'rich' people is generally unfounded, and the main motivation is jealousy.
It's very sad that people are so affected by those they barely know. If you find yourself feeling upset by someone because they have more material possessions than you then stop and think for a moment, and just consider that they have been very lucky in life, and for the most part, they recognise that fact.
Below are some random thoughts on and slightly off topic.
It is very easy for someone to argue that wealthy people should give more to those less fortunate than themselves. While in principle that seems like a logical argument. However, it should be noted that in the UK that's already a legal requirement. Those in the 40% tax bracket pay more tax than those who are not and as a consequence there is a wealth redistribution.
From a personal perspective, wealth is the reward for hard work. Someone above said that a lot of people create their wealth through exploiting minimum wage workers in factories. I feel that offering someone a job is not exploitation. Labour needs to realise that it is used as a factor of production purely because it is cost effective. An entrepreneur will use the lowest cost factors of production possible. So if the cost of labour rises, then other more viable alternatives will present themselves, such as machinery designed to do the job of labour. If that were the case, then there would be an even bigger gap between rich and poor.
What makes people wealthy? Drive, determination, intelligence? Hard work? Discipline? I know a gentleman who became very wealthy by working 100+ hours a week as a roofer. He progressed and employed a number of people who were paid well. He's 'rich' - should he be hated?
One final note: about three years ago, I was told at great length how much of an unpleasant character I was (in the third person of course) by a chap who had clearly never met me. He was pretty drunk and clearly forgotten my name from when we were introduced to each other, but still the point stands... I guess.