Unless you are the employer, or at least the hiring manager, the decision ultimately isn't yours, regardless of leverage, so you have to care about how a change would affect the employer or hiring manager, if you want them to make that change take-effect.
Yeah it sounds like we have different experiences w/ how this works and how much input engineers have into the hiring decision. This isn't really the main point of what I'm saying.
Unless you are the employer, or at least the hiring manager, the decision ultimately isn't yours, regardless of leverage, so you have to care about how a change would affect the employer or hiring manager, if you want them to make that change take-effect.