What you do get (speaking here from my experience in Belgium) is that the top of the wage scale is invisible because past a certain tier everyone works as a consultant to avoid the high taxes. It is not unusual in senior tech roles to charge 1K+ per day or 20K+ per month, and pay a lower effective tax rate on that income, while having long term engagements with the same companies so that little time is lost to churn.
> everyone works as a consultant to avoid the high taxes
You mean, to avoid the social security fees (health/pension/unemployment/…)? After all, as a consultant (whether incorporated or not) you still need to pay taxes and the rates are pretty similar to tax rates for employees.
The people that I know that are self-employed and earning high incomes generally are incorporated and have an accountant to set up tax avoidance strategies to have a lower effective tax rate. Effective tax rates seem to follow a gauss curve, low at the bottom, low at the top, highest for the middle earners.
That'll vary by country and won't be efficient everywhere in Europe. Certainly in Germany freelancers pay the same taxes as regular employees, and setting up a company means more taxes, not less.
