They absolutely are. Feelings are what govern your actions, if he doesn't feel like helping the superheroes then ultimately they're the one losing the fight and all the people he doesn't care about are going to die. His feelings matter much more than the lives of millions of others when it comes to the success of this alien army, nuclear bomb etc's mission. Moreover, if he doesn't want to do it, what then? Are you going to force him? You do know that people working reluctantly rarely give their best effort, right?
You could never trust him to complete crucial tasks because you would always be certain he would be putting in 50-60% of his possible effort. That's just off the dome.
