“There is also a complementary force at work: if you want to build great things, it helps to be driven by a spirit of benevolence. The startup founders who end up richest are not the ones driven by money. The ones driven by money take the big acquisition offer that nearly every successful startup gets en route. The ones who keep going are driven by something else. They may not say so explicitly, but they’re usually trying to improve the world. Which means people with a desire to improve the world have a natural advantage.”

Mean People Fail, by Paul Graham from 2014

(Thanks Paul)