User blog comment:Care Level/MVP Status/@comment-12314620-20130825192017/@comment-9593635-20130827235353

"Necessary" is a loaded word in gaming because nothing is "necessary". Riot could take the servers down tomorrow and, no matter how many people said "Riot!  You simply must bring the servers back up!  It's necessary!", it would not be. That said, it shouldn't be difficult to see how such a system would be able to improve the League of Legends experience for players: there would be the introduction of a reward for doing well in ways that, previously, would only be recognized on a cursory level, at best. Further, because of this, (at least some) people would actively compete to be the most valuable player to the other members of their team, which would contribute greatly to a positive gaming community, I think.

Indeed, individual player outcomes vary depending on things like skilled laning opponents in jungle ganks, but those things all contribute to what makes a player valuable in a particular game, which is what MVP (and, for that matter, everything else) votes would determine; it's not like it would be a thing that you accumulate over a season.