there is a difference between doing it ethically and doing it unethically. and if you dont know this difference, its for this precise reason there's the monopoly restriction bodies in every country. its for the same reason that european trade union has punished micosoft for abusing their monopoly. US government came close to splitting microsoft, but dint do it, because microsoft has an office just for lobbying at washington and in the name of bill gates' dad, and pretty much has an iron grip of the top government officials there.