If mantisweb favours large investors by rewarding them more % then that would be amazing. Imagine getting 30% PoS based on the size of your node plus uptime. People would be buying up Mantis hand over fist so that they can run nodes and get a great return. This will also create a liquidity squeeze, increase the price and add more value to the network.
go to drk and try to buy 1000 DRK on an open exchange and see how much the price moves. The same would be for Mantis.
I hope that this is the case.
Nice analysis tokyoghetto they way you explained how MantisWeb was designed is pretty much spot on! All our future features are based through the use of MantisWeb's also so everyone will want to run one.