What are randian take on extreme wealth ?

I know it may sound paradoxical, but keep reading.
We all know that in capitalism, some degree of inequality is natural and even seen as healthy to incentivize productivity. But what about the ultra-wealthy?

First, much of this extreme wealth relies on monopolies and oligopolies. Large corporations often buy out smaller companies specifically to eliminate competition. Isn't this unhealthy for capitalism? Concentrating a monopoly of power and wealth into the hands of a few people seems to contradict the idea of a free market.

Furthermore, many of the ultra-wealthy receive massive amounts of money from the government. Elon Musk is a prime example; his enterprises have received significant government funding and subsidies to sustain their operations, largely because they are viewed as a matter of national interest to the US government.

This brings me to my main question: is there a point where extreme wealth actually becomes the antithesis of capitalism? As paradoxical as it may sound, extreme wealth and the government frequently operate hand-in-hand, with large corporations doing everything they can to mold the market in their favor rather than competing fairly.

i don't know enough of libertarianism and ayn rand that's why i'm asking here. It's an genuine question, does ayn rand objects extreme wealth in an way that damages the libertarianism goals ?