Maybe you have a different experience, but none of the actual business problems I deal with are leet-code style. Then again, I have recently stopped calling myself a software developer (and have long since stopped calling myself a software engineer) in favor of the more accurate "software plumber". But I imagine, even coding tasks that require algorithmic knowledge and insight, are benefitted from well-organized and well-designed code. Doing that correctly is often a matter of insight and judgement, and I think often those are not "easily learned".