Philanthropic

Adjective from the noun - Philanthropy, the desire to help others, especially through the donation of money to good causes.
Origin: From the Greek philanthropia, from philanthropos - 'man-loving.'

When philanthropy goes wrong...

Having (begrudgingly) included misanthropic, I thought I would be generous and give an example of philanthropy. The word I would use to describe the adjective in question is 'noble', due to its sound and the sentiment behind it. It is another word which needs to be brought into more common use as I bet more people would donate to charities if they knew they would be called a philanthropist. You could give badges which read 'I am a philanthropist' to those who put money in the collection tin. You would make millions for the charity.

P.S. Aren't you surprised I didn't make any jokes about the meaning of the origin?