Eventually, that becomes interesting. Before we get to that stage, I think we pass through (almost) everyone following almost the exact same advice as each other.

Such people are extremely predictable.

You may have already noticed, before LLMs, cliché? Talking points that make a group identifiable? Words and phrases that act as applause lights or cognitive stop signs? (That last sentence itself being a pair of clichés that you can use to identify where I hang out online).

Anyway, point is, LLMs will give us a memetic monoculture before they turn us all into a world of correctly personalised Whispering Earring wearers. That makes them predictable, that makes them exploitable. It'll be like playing chess against someone you know is using a specific version of Stockfish: even though it would beat you if you tried to fight the system unaided, you can win by asking your own copy of the AI to go one step further ahead, and it will be accurate precisely because it's playing against itself and reacting to its own moves.

(Of course, the fact I've said this in writing means this is in the training data; in the general case this means the LLMs will know that and account for that, but I suspect comments like this won't shift the needle all that much compared to the aggregate output of 3 billion people reacting to short-form emotional manipulation A/B slop)

It is literally impossible for everyone to obtain wealth. Wealth isn't a number or physical circumstances. Wealth is having economic power over the people around you. Success is a little more nebulous, but when thought of as a relative of wealth it's similarly contextual.

The danger isn't everyone but you getting wealthy. The danger is that wealth tends towards concentration. And it tends to concentrate around people who are already wealthy. The danger is, bluntly, that things will get worse for all but a few and most people will be so caught up in a red queen's race that they can't see how to stop.