Lately, I've seen people arguing about "on-chain queue jumping being unfair" again, and I actually feel quite conflicted: honestly, sorting has never been about queuing for a number, whoever bids higher gets on first, and miners/validators are not charities.

The ones most affected are not "retail investors," but those strategic orders that they think will execute as expected with just a click—slippage and a whole set of logic collapse, then they turn around and blame MEV.
What's even more amusing is that now RWA, US bond yields, and on-chain yield products are all put into one table for comparison, everyone is staring at the annualized column, but not looking at whether there's room for someone to "squeeze" behind your yield... the yield is written on the page, but the cost of sorting is hidden in each transaction.
My partner even complained to me last night: "You study queue jumping as if you're a subway security guard, but you still forget to adjust the gas fee every time you transfer." Fine, for now, there's no absolute fairness on the chain—only you know whether you're playing with someone who knows the game.