Let's face it: there are not many "companies" like ANSP's that make 20% returns so please let them go bust and be replaced by proper companies that are paid extra when they do a good service. ANSP's are the top paid civil servants in some countries and that are messing up all the efficiencies that aviation could make overnight if we made it a true single european sky.
RANT over
The ANSP I work for has a 3.5% margin....dunno what one you are thinking of!