Friedman was a TrueBeliever in the Cult of the Invisible Hand. Since it's a cult, you can't use logic when talking to the cultists.
Friedman told the greedy that greed was good, and that being moral and decent was only for communists, so the greedy fell in love with him.
As for inflation, I'll let this piece talk about how Friedman pooched it.
As inflation fears return, it’s worth reminding ourselves of the real-world facts.
evonomics.com
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Like much of economic theory, Friedman’s thinking appears plausible on first glance. Inflation is a general rise in prices. And since prices are nothing but the exchange of money, more circulating money means prices must increase. Hence, inflation is ‘always and everywhere a monetary phenomenon’.
Unfortunately, this thinking falls apart on further inspection. The problem is that it treats inflation as a
uniform rise in prices. That’s theoretically convenient, but empirically false. In the real world, inflation is wildly divergent. At the same time that the price of apples rises by 5%, the price of cars could grow by 50%, and the price of clothing might fall by 20%.
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