Kraftwerker
Formerly RedAddict
The problem is that when Bayern does not buy the rest of the big fish in Europe buy. At the end it does not change anything. Bayern can buy a similar player from elsewhere - whereas the player from the competitors goes abroad...
Of course it changes things. Let's use De Bruyne as an example. If Wolfsburg lose him to Bayern not only have they lost by far their best player, but they will have also strengthened the club they are supposed to be competing with. Of course we know that they can't compete with Bayern, so it's not really case of selling to a competitor, but that sort of reinforces my points.
Bayern don't really have competitors, just a series of feeder clubs who are subservient and would need minor miracles or a catastrophic Bayern decline to win the league.