Sure, but a big company can absolutely find some little-known creator's work, spin off their own products with it, and use their size to absolutely dominate search results, marketing, and distribution.

While it may no longer be legally considered theft, it does seem to be a shame that a creator has a window of only a couple years to find success with their work before they're at risk of it becoming worthless to them. In creative fields it often takes many years to build up a portfolio and a following, if you've not been picked up by a major promoter.