America is an example of the narcissism and psychopathy that extreme wealth creates, and capitalism rewards, rotting a society to its core.
It's most prevalent in America because it has the highest wealth inequality, and the most religiously indoctrinated poorly educated population, but the ultra wealthy tend to be narcissists everywhere; especially those born into extreme wealth, like Trump.

We got capitalism. This is always how it was gonna turn out when you reward the most sociopathic and morally bankrupt criminals with wealth and power; as long as they act behind the liability shield of a corporation, and do it for-profit.
If you steal 100k you go to prison for years. If you steal 100k from your employees via wage theft you'll probably only have to pay back a fraction of it and won't face any criminal charges. There are hundreds of examples the world over of corporations engaging in some of the most heinous crimes imaginable and the criminals responsible facing little more than a public shaming for a news cycle; walking away scott-free with a kings ransom.
Tobacco companies wilfully engaged in a criminal conspiracy to lie and endanger public health — for decades — killing millions of people. Everyone involved should have spent the rest of their lives in prison, and been stripped of all their wealth. Same thing happened with lead and asbestos.
The way we've allowed, normalised, and accepted corporate criminals prospering for their psychopathy and narcissism, we deserve dystopia.