Partially. His primary job is managing investor's feelings.
>Maybe I'm totally wrong but if I am, a whole lot of people who aren't you are too.
You believe the version of the world that they want you to believe, not the world as it is. That's understandable. The powers-that-be project this narrative specifically because if people know their job is to manipulate feelings, it'll be much more difficult to do that effectively.
Good managers want to make themselves sound like self-sacrificial superheroes and inspire hero worship so that it's easier to manage the subordinate's feelings. That's the narrative they project.
However, it doesn't take an intelligent person much reading or experience to realize that things don't line up with the narrative. Management is all about managing feelings. Yes, it's true that management has to make decisions that won't bankrupt the company, but that's the easy, minor part. The difficult part is pushing those decisions through the organization with as little feeling-damage as possible, and running programs of feeling-grooming to keep your employees cooperative.
The most important thing in anything, not just business, is not what people think of you. The whole purpose of your employment is to exchange your value for their value; why would feelings get involved if you recalculate your own value? You're asking poorly if people get offended, or the person you're asking does a poor job of separating emotion and business (literally step one of succeeding in business).
Do you really think Tim Cook gets up before sunrise to manage his SVPs' feelings? Your observations about what business actually is speak more to you than they do "the real world"; speaking of, since your opening retort was a slightly condescending explanation of that real world which I assure you I live in as well, I suspect the problem with your outlook reflects on you. But I don't mean that to belittle you. Just that perhaps the outcomes you experience come from how you approach things and not a firm understanding of business.
Might be worth some introspection here. Maybe I'm totally wrong but if I am, a whole lot of people who aren't you are too.