Have you ever considered that people might want to do a startup because they want to build something of their own? Not for the unlikely potential money (or not necessarily for it), but because they want to see their product/invention used by others around the world? Because they find the thought of being a cog in the wheel of a large company mind-numbingly boring, even if it pays very well?

It's not for everyone, and I am not saying you should think like the above, but please try to appreciate that some people actually do think like that.