I was in your shoes at my last job. I tried many techniques for over 2 years, but eventually I had to resign because nothing was going to change no matter what

I was in your shoes at my last job. I tried many techniques for over 2 years, but eventually I had to resign because nothing was going to change no matter what I did. I was constantly being dictated to or ignored as if I was a Jr. Dev, even though I had by far the most experience on the team. I'm sure I am not the best at handling the nuances of interpersonal communication, so I'm sure I'm somewhat to blame. That being said, what can I do when someone argues against me about something they are truly incorrect about? Just let them carry on and do the wrong thing and further sink our codebase into oblivion? I guess so...