Because Europe has not legalized corruption to the same degree as the US. Massive campaign contributions is not as common in Europe, hence large European multi-nationals likely don't have the same opportunity to change regulations to serve them.
Of course they can still influence politicians by talking about all the jobs they will provide etc. Also power in Europe is not centralized the same way as it is in the US. In the US you can lobby Washington DC.
American lobbyist companies started swarming Brüssels as soon as the EU started gaining more power over national legislation.
So there is potential for the EU to head in the US direction, but it isn't quite there yet.
Of course they can still influence politicians by talking about all the jobs they will provide etc. Also power in Europe is not centralized the same way as it is in the US. In the US you can lobby Washington DC.
American lobbyist companies started swarming Brüssels as soon as the EU started gaining more power over national legislation.
So there is potential for the EU to head in the US direction, but it isn't quite there yet.