Earlier quoted context omitted.
You're mistaken. (Well, maybe not mistaken if I read exactly what you said literally, but people/companies most certainly do choose not to use GPL software if they're looking to build a system that they can exploit for profit-making purposes.) It takes a very forward-thinking person to understand that they have more to gain from the thousands of eyes and the support of the community, than from a paywall that gates ac…
You're not talking about using the software, you're talking about making derivatives. The GPL doesn't restrict use of software in any way. It only prevents you from redistributing derivatives under more restrictive terms.
(If they have a good legal department that understands intellectual property issues at all, and their product team knows they don't actually need to hack on the Linux kernel to make whatever they're building, then they will not likely be restricted against using Linux ... but the decision will necessarily restrict their choices when finding other components to use as part of the system they are building.)
Whether that is a good thing or a bad thing, I certainly feel is debatable and I'll reserve judgement. But it is provably wrong to say that nobody chooses not to use a GPL-licensed piece of software because of the license it is distributed under. Tons of people do.