Not trying to be dismissive of your suggestion, apologies if I dont word this well and come off that way.

But would it really be necessary? the biggest spenders, the guys with the most power are the ones with the highest ini anyway. Sure a very, very small number of smart and/or patient f2p could be relatively high there but in general the ini ranking would be near as makes no difference identical to the power one

It could be useful, if you are in the top percent of players in your server so having a way to keep an eye on other powerhouses ini would be a nice tool, and more titles forever out of the reach of people who aren't rich, but for the majority of players I doubt it would make any difference to be honest