But do they think of them as assholes because they are smoking? Or eating unhealthy food?

If you eat so badly that you die at 40, then yes that's just as bad as slipping off a rock. Look at it this way, let's say a guy gets married and then starts eating so many big macs every day that he's headed to the grave in a few years. My guess would be that his wife would hate him for that even more than if he was a solo climber.