Broadcom is perking their ears up now.
I'm glad your own side projects have helped you find good work, but you're hardly in the same position as curl here.
The author of curl chose to give it away under an open source license. Yes it would be nice if more corporations with deep pockets that use it would donate money and resources, but there’s no legal or ethical obligation for them to do so.
If you want people to pay for your software license it accordingly.