I'm in the top percentile of reading speed but my comprehension is average. It's not that I'm trying to read fast I just do. I don't know if more wpm means you're taking in more information. I guess it's useful for skimming for spaced repetition type learning techniques.

Generally I find I learn faster from reading regardless but I can listen to podcasts in situations where I can't read. E.G. doing a mindless repetitive task.