I know it sounds really strange, and that is where your guy's revenue comes from, but the problem with the Refer-a-Friend program with you guys offering RP for such amount of friends. To help fight this, Riot should implement and new game type, where every week there is a certain amount of "quests" you have to do on various maps, that you could earn RP,EXP, or IP not all 3. So it is not completely bombing your RP money income, but still lets players that are not fortunate enough to purchase the RP. Could this be possibly seen into the game in the near or late future?
I don't understand what you're saying. They don't offer RP for the Refer-A-Friend Program. This is very clear.
http://na.leagueoflegends.com/rewards/
I'm not sure why Riot would "fight this"?
RP is their income revenue stream. Giving out RP for free just doesn't make any sense. For your time, you get IP, which you can buy to use any game content. RP only gives you skins, which are not necessary to play the game at all, and add no new functionality to the game.
You are essentially asking for free money, to get something that you don't need to play the game. It might not be the popular opinion, but I don't think I agree with you here.