It seems many European companies are still stuck in the traditional line-management model where development is considered the executionary role of ideas thought

It seems many European companies are still stuck in the traditional line-management model where development is considered the executionary role of ideas thought up by people with no engineering background. This is further strengthened by our educational system which promises "sexy jobs" in the tech sector that don't require a technical background. We also don't have places like hacker news which has a friendly healthy unionizing effect. I believe this is the primary cause we're not seeing such high salaries in Europe. I think it's also the reason we're not seeing as much innovation happening in Europe.