All it does is put someone else in a bad spot where they have to make that tough decision at some point in the future.
It's called captaincy and part of what we get paid for. If someone can't deal with that, best they stay out of the profession altogether. I was asked about this in my interview for a certain company. I was adamant that my word was final; an aircraft captain isn't a minion and must never become one if he is to keep the operation safe. I got the job. But in the end, I got frustrated at the lack of understanding and respect for the responsibility of an aircraft captain; It's a fine line to decide at times. I quit that job.
Problem is, when certain people get to certain high positions (I'm referring to passengers now, and their mentality) pilots are often the only people who say no to them.