I don't think you have to be altruistic to have genuine enthusiasm -- some companies have fantastic plans to support open-source as well as their business plans. But I agree with the first point you are making.
I think it is naive to believe than any company that is beholden to investors would choose altruism over profit. Most corporate altruism is just marketing.
I don't think Microsoft is any more altruistic now, they just have adjusted their corporate strategy to recognize that supporting openness is good for business. That is enough for me.
I don't think Microsoft is any more altruistic now, they just have adjusted their corporate strategy to recognize that supporting openness is good for business. That is enough for me.