Interesting question. Shortest answer is perhaps that it is easier to relate to footballers. We've all played football. But to be filthy rich(er) like any PL owner, you've had to **** people over for eternity and not too many people tried doing that.
Not a good answer. Perhaps we've all dabbled with a bit of singing in the car or a bit of Karaoke but we don't all earn the same as the likes of the Rolling Stones, Coldplay or U2 for example.