No offense but the rich are always going to have the advantage, that is what it means to be rich, for them the fee they need to pay compared to the size of their capital is lower than for someone that has less money, we have known this from the beginning and even some people early on asked questions to satoshi about this, the scaling solution already exists and it is the lightning network it is just that it is not widely accepted yet, it will take time to gain traction but once it does the fees will be smaller.
I don't see LN as a permanent solution to the scaling issue though. LN has its disadvantages and over the long term, it would not be enough either.
Bitcoin needs to scale without a secondary layer. Until then, it'll remain an issue for many. Since Bitcoin itself is barely adopted, I can't imagine LN having that much of a success tbh.