It’s good if seeing your GPA increase has a positive effect on your self-image. It’s great if it helps you get a valuable credential. And you should certainly seek to do well at whatever you choose to do.
But it would be nice to know if a high GPA causes you to be more wealthy, productive, and happy in the future, or if the two are merely correlated.
Indeed, trees can be beautiful, but let’s not lose sight of the forest.