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I basically agree with Lizard. Heroes are like chess; we're not at the same level as professional chess players (except maybe Vanya), and there's a factor of randomness, which is why heroes are more interesting to us. But there are ideas, it's food for thought, and I also think it's better for my development than reading some book.
But in general, of course, you can read books, know 5 languages, work at Google, and play Heroes at a high level. I don't understand what the problem is. I know professionals who work at Google and win programming tournaments, and they even spend more time on leisure than someone on a website. Leisure is also needed, and Heroes also develop the brain.