The question to ask yourself is what exactly were you trying to learn from philosophy, sociology and literature critique? And why did you think such books would benefit you?

If you read the wrong types of books, the ones that do not resonate with your goals, then you will gain nothing. Reading Tolstoy, when your goals are in physics, will seem like a waste of time, a mere pleasure, sort of like watching a movie or taking a walk. But when your goal is to become a good writer, a better teller of stories, then reading Tolstoy can be an epiphany of sorts. You see how his stylistic effects can be applied to your own writing; how a novel can capture the spirit of the times much more effectively than any historian could, and so on and so forth.

Knowledge is only good when applicable, otherwise it is useless.