This argument, which I find very typical of arguments in favor of humanities education, kind of drives me nuts. It's very nebulous in terms of how these benefits are actually related to humanities classes. I place very little value on degrees in general, but at least I can sometimes see very clearly how other engineers I work with sometimes know useful things that I don't know from CS classes because they are directly related to the subject matter at hand. But nothing you are mentioning here is at all like that.

Yes, of course it is beneficial to be "more aware of/able to comprehend situations involving others and their motivations," but there isn't a class on that and I see no relation between social skills and education (at any level or field of study). I would take a HS dropout sales guy over a phd in humanities any day in terms of this particular skill.