But with crypto they do. See for example all the BAGS coins that get created for random opensource projects and the behavior that occurs because of that.
Creating your own chain just because you can rather than because you actually have a reason to implement the technology in a different way than anybody else should be disfavored and viewed with suspicion.
ERC20 tokens are part of Ethereum (and yes I realise there are also non ETH based tokens and that the gas cost of Eth makes them attractive etc etc)
Utility tokens are fundamentally equities and you need to firewall equity from an organization the same way companies in most market economies are regulated.