Do you have preconceptions about rich people?

No

I'm not sure what lies behind your question, Sel? I applaud the likes of Bill Gates and other (unsung) philanthropists, but similarly, along the lines of "the widow's mite", pensioners who fund raise for those worse off than themselves, people on low incomes who give to charity, those who volunteer - giving time because they do not necessarily have much money.
To answer the question, however, the only preconception I hold is that the rich have considerably more money than I.

Is it not still the case though Sel that those with the least to give (proportionally) give the most?