A general comment about playing Chess. I've been playing since I was a kid. I like the game. Well, sort of. I've probably logged nearly 10K games on the playchess server. One day, while having a conversation about Chess with another (older) engineer he made a comment that really stuck in my mind, he said: "All you accomplish by playing a lot of Chess is to become a better Chess player". His comment had a point to it.…
What does playing Guitar get you beyond getting better at playing guitar? Snowboarding? Rock Climbing? Traveling the world? Building perfectly accurate models of 19th century warships?
There are a million things that people can take up a a hobby, and even dedicate their entire life to. All of them have your same points in common that, unless you manage to become one of the top 100 people in the world at it, it's not really going to ever benefit you beyond your own personal satisfaction.
And yet, I defy you to find a single person who doesn't have at least one of these time wasting hobbies. It's part of what makes us human.
My advice is to not sweat it so much and go play Chess if it makes you happy.