Again this is mixed causality. Rails did not take off because of commercial interests – besides dhh who was working on it on the side, all the initial committers were doing that for fun.

Eventually they brought rails in many commercial companies and these companies succeeded to the point they could pay people to maintain rails.

of course Rails is mainly commercial

gems and bundler is for everyone though, even hobbyists writing scripts. Alienating contributors who support common infrastructure for no good reason is just plain stupid especially when those projects wasn't theirs to begin with