Salaries are only raised when workers are chasing the money, why else would companies raise salaries? All threads about salaries in Europe are full of people telling us how happy they are with what they got, that is the wrong attitude if you want things to change.
Edit: To expand further, think like this: The easier it is for companies like Google to hire good talent in Europe the more they will hire talent in Europe and the more development they will do in Europe. They already do quite a lot of development here as is, there is no reason that couldn't be expanded.
I agree with you, but moving to Switzerland is not a very good solution to achieve that. Salaries are high there only because the cost of living is much higher than neighboring countries. The country is very small, so demand for workers is not high. Also, Switzerland is not part of the EU, so the salary levels there have little influence on the salaries in neighboring Germany, France and especially Italy.
Edit: To expand further, think like this: The easier it is for companies like Google to hire good talent in Europe the more they will hire talent in Europe and the more development they will do in Europe. They already do quite a lot of development here as is, there is no reason that couldn't be expanded.