That's why you see tourist visas denied for people who are coming from developed countries and are visiting relatives. The immigration official knows that one he lets you in, he has to count on the person's goodwill that they'll leave.
Could you live in the US illegally and be working at a Fortune 500 company? Probably not. Could you come to the US and work at a mom and pop grocery store? Probably.
And the USCIS has a minuscule enforcement arm. They prioritize criminals for deportation. If you're a law abiding immigrant (excluding the immigration violation), you are very low priority for deportation.
I would think that this in itself coupled with the high time investment costs of applying for such a startup visa (business plan, prototype etc) would self-select a section of the population who will either succeed or self deport (instead of screwing up their career and future potential by living illegally).
What if instead you can get people to invest that amount into your startup and then use that investment to create jobs?
craig politihacks com (with the usual distribution of at and dot)
So it took me 3 years until I could start creating jobs in the US. In my opinion US government should provide incentives for the foreigners to CREATE jobs, not TAKE them. Right now it's exactly the opposite.
This OP's point is I think the most important part of this blog post: "And allow them to graduate into new visa's (like a greencard) once certain milestones have been hit like revenue thresholds (tax paid) and employment (aggregate demand in the economy increases)."