This is not entirely true.
Bill Gates, while not the nicest kid on the block, is actually owns shares in
Red Hat. Say what you will about his intentions, I don't think that even as a
business man, he would purchase stock in a company if his only intention would
be to crush it. He is a business man, and he wants to make as much money as
possible, that is why he follows the business practices that he does.
The end does not justify the means, I just wished to correct you on your statement
that Bill Gates is anti-open source. He probably thinks it's a good idea, or he
would not invest in it.