I don't know. It probably varies. SV wealthy is quite different from Appalachia wealthy. It's that point, where people start worshipping your money. Some wealthy folks also make a point of showing off their wealth, so it starts earlier, for them.

Also power. You see the same thing happen with managers that dismiss criticism, and have the power to make it stick.

The specifics are certainly cultural and locally relative, but Marx nailed it when he talked about ownership of the means of production, rather than being part of the production of goods and services.

The reason that the ultrawealthy behave like toddlers is that toddlers are, relatively speaking, ultrawealthy: all their needs are met without any effort on their part, and so many of their desires are fulfilled simply by expressing those desires out loud that any impediment or refusal is obviously enemy action.