Second, we do not have the right to make others' lives more meaningful if they do not want them to be. The state's core role is to protect our rights. Libertarians and conservatives define rights negatively, while liberals also speak of positive liberties in addition to negative one, but this is the core premise of liberal democracy. What we do with these rights and liberties is up to us.
Of course there are exceptions: this is a big argument for having national service or conscription even in countries that can afford professional militaries and don't have hostile neighbors. I happen to disagree strongly with the idea of any kind of national service or conscription, but I don't find it something that should be dismissed outright and without debate.
More to the point, we do voluntarily inflict suffering on ourselves all the time: most obvious being physical exercise, pain of childbirth, but less obviously difficult academic programs (e.g., EECS at UC Berkeley or CMU). Indeed, we pay a great deal of money to have others inflict suffering on us as long as we're able to extract meaning from it.
In the (arguably) skewed world of Silicon Valley I think that's a valuable thing.
Why is that your job?
Even if it's good for them, you don't have to be the one to do it.
And the same applies to everyone else, plus governments.