No, investors will slowly cook you into being a complete prick every time but you don't need to begin as one. If they fail to turn you into a prick then they'll replace you with someone else.

Only way to make it big without shitting on people is by using your own money and work to grow naturally - but even in that case you most likely will end up in some situation where someone will force you to choose between giving up either your humanity or your dreams.