In theory patents are also to protect smaller players (though not dirt poor), from getting their work ripped off by bigger players after demonstrating feasibility. The idea of being an "inventor" professionally only really works with patents. Software patents pushes this model to logical extremes though. I run a small startup that trains models for medical devices and the only way to get any of the large players to care about implementing improvements you make (and not rip you off) seems to be to have some patent protection. They are mostly interested in the patents as assets to prevent their competitors from acquiring. In all honesty I'm not completely convinced on software patents either but we've had to adapt.