A good engineering interview will include some set of difficult problems to solve. It might even require that the candidate write a short program. In addition, it will test the candidate's knowledge of the tools she uses in great depth.
When screening engineers from other companies, its smart to value engineers from great companies more than those from mediocre companies.
I do think a lot of people are trying to do important things still, and I think it is really a great thing that entrepreneurship is getting easier. When I started, it was just much harder to begin a company.
In order to build a great technology company, you have to hire lots of incredibly smart people. It's a total waste to have lots of big brains but not let them work on your biggest problems.
Some libertarians say, 'Well, if people work harder, they can make more money.' But, you know, my mother is a nurse and I am a venture capitalist. I think no matter how great a nurse she is, she wouldn't earn a one-thousandth of what I can make, if that.