You could say that it serves the industry better in the long run, however, for each specific company arguably it's not a benefit - there's no competitive advant

You could say that it serves the industry better in the long run, however, for each specific company arguably it's not a benefit - there's no competitive advantage if the same new builders are available to their competitors, and they already have some builders and capacity for making more, so if it's more difficult for new ones, well, that's just a higher barrier for entry that allows them to extract higher margins; having higher costs doesn't necessarily mean lower profits if you can just raise prices as no potential competitors have lower costs.