This the same everywhere outside the US though. Salaries are much lower as the skill ceiling tends to be much lower and there is more skilled labour available.
The US just has a huge amount of investment, a small skilled labour force and a more meritocratic outlook in general (bear in mind, even just 50 years ago, being a manager or not would depend on your family and school in the UK for example, and you wouldn't even eat with your subordinates).
I don't think worker representation would change much there, the Americans already have it so good.