It's commendable to strive to improve. I agree that 95% of projects are a mess. I don't think there is value in writing good commit messages in those environments, even if it is easy. If you're going to spend 30 minutes writing a super awesome commit message, I'd rather you spend those 30 minutes on improving the code or the test suite or even writing the awesome commit message in the JIRA ticket.

If you've reached the point when the next "optimization" you can do is to work on your commit messages, that is awesome.