I don't object to hedge fund managers. They deal in futures, which provide a degree of stability to big investors, such as pension funds. Hedge fund managers take enormous risks and can lose as much money as they make. Without them, the markets would be more unstable than they already are.
What I object to is the UK's lax tax laws, which mean that tax can be evaded.
I don't really understand the idea that people with money, especially money which has been earned and taxed, can't also have a social conscience. Some of them don't, of course, and take the line that if they've managed to earn money, so can anybody. That's not true, so I don't see why people who want to give others a helping hand should be labelled as hypocrites.