Everyone that is playing the events and GE has the chance to gather like 100K coins in a month or so.
It is obvious, that players with 4, 5 or more years in the game will have bigger inventories than those with two months, but that doesn't make the system unfair.
Prices are the same for all and it is a matter of patience and a little strategy to buy the things you desire at a reasonable cost.
For instance, 1 SoK sells for 8100 coins and one can easily get 5-10 at every event, So here you have your 50K coins, without taking into consideration the other stuff you get in the same event. And, let's say, you have three weeks of GE for the time of this very event, where you get stuff for another 20-30K. So, for the time of a single event, one can gather at least 100K coins.
It isn't that hard at all and has nothing to do with age or diamonds spent. Just patience and a little knowledge of the game.