How do you compete against the VC-powered economic system in the US? VCs allow startups with often pie-in-the-sky visions and shaky business models to recruit the best of the best from across the world. The recruits know that they may be looking for a new job in a couple of years if the cash dries up. For them, it's OK because there will be another startup flush with cash. For the VCs, as long as 1 out of 10 of those bets go public, the ROI still works out.
This is simply not something that exists at a comparable level outside of the US, outside Silicon Valley even.