Well Brian Cox (unfortunately) earns about £250k a year working for the BBC - bearing in mind that the BBC tends to pay less than other channels, and he works there more out of allegiance to the BBC than for the money. Stephen Hawking is reported to have a net worth of approximately £10m, in addition to his 12 degrees.
Beyond that, most senior lecturers make more than enough to live comfortably. Additionally you can well go into engineering from physics, with a little extra work and some dedication, which is well known to have well paying and stable career prospects. However people don't become a physicist for money, and that's a pretty stupid reason to pursue it. Just study PPE like the rest of the misers on these forums if material wealth is that important to you...
Anyway condensed matter is the money maker field, since you can get all the theoretical fellowships and so on as well as a lot of industrial funding, as it leads to a lot of industrially useful (or at least, speculatively useful i.e. graphene) results.