1) steel and rail are important for survival, and actual monopolies that result you being only able to get a necessary good or service from 1 seller

2) there are a billion different ways to entertain yourself, including spending time on HN. It matters very little to real life that there are 5 different places to stream expensive media compared to 6. If they get too expensive, you can watch youtube or tiktok or come back to HN or whatever else.