GPL has certainly failed time and time again, openly in the case of FFmpeg and their clones all over Eastern Europe and elsewhere. FFmpeg made a lot of noise and resorted to "public shaming" mostly because the courts weren't working for them. And they have a very visible product... so many GPL licensed things are lurking inside proprietary products where they'll never be seen.
It's like putting a license on COVID to prevent it from spreading... it just doesn't work in the real world.
In the corporate world, they have a lot to lose. So, they have lawyers - expensive lawyers - who, in theory, protect them from expensive lawsuits. One of the easiest ways to stay out of lawsuits over GPL and friends is to not use GPL software, so... that's why it's radioactive. Just having the parasitic lawyers review possible exposure is hellishly expensive, better to re-develop in-house than pay lawyers or even begin to think about the implications of entering into an agreement with a bunch of radical FOSS types.
It sucks, but it's also how it is. Some corporations (like Intel) do heavily support and contribute to FOSS, when they feel like it.