Give me Ellison over Gates any day.
He's trying to eradicate disease and help people who don't have billions of dollars, or even millions...or even hundreds of dollars to their name.
Bill Gates didn't screw up computing. The Microsoft that exists today is an entirely different animal than it was when it was just a startup, just as Google and Apple are different.
This isn't cynicism about startups' growth trends; this is a point that Bill Gates has revolutionized the entire industry multiple times over. How he chooses to spend his wealth is what most people would call generous and altruistic.
Although I wasn't comparing the operating systems, I was comparing the pattern of the companies' growth and changing management over the years. That's why I included Google.