I've noticed that a bit in this thread, and I have at least one other friend that's struggled with this: the notion that there is some kind of responsibility associated with some kind of talent.
Well, there isn't.
A person that's naturally beautiful doesn't have a responsibility to become an actor or an actress or a model. In our society, it's frowned upon if their parents do things like push them into beauty pageants.
People that are naturally strong or powerfully built don't have a responsibility to take a manual labor job, and nobody tells them that they aren't "living up to their ability" if they don't take a job in construction.
Now, there's a caveat: there are certain problems in human society which smart people are better suited to solving. That doesn't mean they will solve them -- most of the problems require multiple talents, and intelligence is just one -- but they do have some edge.
But that's not your responsibility, or mine, or anyone else's. You should decide what's important to you and then do that.
There's nothing wrong with spending your life having fun.