I assume that the software your company sells for large amounts of money is not GPL , if it is pure GPL I would be very interested to know who they are and how they manage to get people to actually pay for it when they could just download it for free online.
If a company exists to make money, why would you discount one of their profit centers as invalid because of another of their profit centers?
That's not what I'm saying, what I'm saying is that I've never seen a company create GPL software as a profit center in itself and I really can't think of a business plan that would make that feasible.