for me it was a personal thing more than anything. if anything it made me question my future and why i wanted to go into medicine (i did it an old persons home). to me it was one of the most valuable experiences of my life because it changed my mind about the career completely.
a lot of the residents i felt werent treat very well and my personal beliefs meant that i thought euthanasia was better for them than the home, and itd be pretty hard to go into a career were you have to do things that conflict with your own views and still having the passion for it.
so, i think certain work experience can be really helpful!