I think being a programmer we must understand that there's never a one size fits all needs.

Each project has different needs having an option never hurts, as long as there is competition, there will exist a chance of open sourcing the source.

Because, closed source softwares die faster in their lifetimes, while open source remain remembered even after being unmaintained.

Had it not been for GitHub(a closed source software) we'd had never reached this stage of open source expansion and understanding, because hosting a git to open source a project was and still isn't cost effective solution. Meanwhile torrents are mildly successful with this, yet faced by the lawful resistance in many regions.

Basic goals, should be to always have a choice, if there isn't much then create one if you can. Rest is just fog in hindsight, I'd say.

Gaming is one such usecase that requires and works well, currently, with proprietary software.

As such, gaming is a sport and as long as a game is competitive, there's always a chance to bypass a n obstacle with a hack, just as there was misconceptions with OSes.

But unlike OSes, games don't have a commercial application yet, we still have a long time before the realisation of freeware gaming.