Not at all. Many factories are build in the poorest countries because of the cheap labor and quickly, they become less poor. This has prove to work well and the differences are reducing. Maybe not fast enough.

So what you're saying is that the single market is also used to siphon jobs out of all but the poorest countries so companies can get away with paying peanuts. And that's supposed to be good?

Consider this: a salary of €500 in Romania would net you the same purchasing power as someone who earns €1500 in Denmark. How would that work in a capitalist economy?