Microsoft will probably counter-fine by raising its prices by 1€ in EU. Europe will happily pay for it.
If they raise the price by €1 and for the sake of argument we assume a net profit of 50%, they would have to sell 1.1 billion packages to recoup the fine (I don't think Microsoft has sold that many software products in their lifetime, but it's a fun little thought experiment). 1.1 billion Windows 8 licences at €280 a piece is €308 billion revenue of which the corporation taxes will flow back to the EU members. It's a win-win for our tax payers!
High software prices indeed harm tax payers. There is no win-win.
High software prices generally hurt businesses more than individual taxpayers. The 1EUR fine would be a catastrophe for Microsoft's PR, however.
That kind of move would also push a non-trivial population to alternatives (however weak) like Google Docs.
Microsoft already started hiking prices for some of the enterprise products, and for now they can afford this.
1. I don't think it's useless, when companies raise their price they loose customers so Microsoft will probably be more careful next time.
2. If it is useless in practice, we should change the law but surely not let them do what they want, just because it's useless.
Yeah well, fighting IE's monopole is trying to reduce dependecy to Microsoft.