This is similar to the OODA loop the military uses, as well as Deming.
Saying get used to it is how many companies and organizations have operated, but that is changing. As management realizes that living with too many faults is an issue, some orgs implement corrections and refactorings. Tech or otherwise. Those that don't are seeing competition outperform them, and the lesson is getting learned, albeit slowly.
Having a constant lack of faith that things can improve, doesn't seem to be helpful for me.
Rod, in terms of introducing change, often you need to show something. What I aim to do is show a small change, maybe I take a little extra time and show two ways of doing things, along with the metrics of how they perform, or how they deploy, or something that shows an improvement. That helps me to prove to myself that a different way is actually better. I need to also show that a new thing doesn't require a lot more effort. Templates, snippets, some way of making a pattern change easy is what helps further adoption.