You could charge $40 an hour and be doing it for the "wrong" motives.
The relevant questions are: does he pressure people to pay for what they can't afford? Does he add hidden charges after? Is his service any good?
Those would be grounds for complaint. That he charges a price we wouldn't personally pay is grounds for complaint only from sour grapes.
Prices are context dependent. It's not difficult to imagine that counsellors for famous, wealthy or powerful people charge a lot more than the prices being discussed here.
If we lived in California and provided a service for rich people who need help we can provide, it's no surprise that we would charge a lot. And in some countries you could probably eat for a month what we might spend on one meal out. Some people lack ability to view from different perspectives.
To be clear $400 is too expensive from my point of view and I would never be interested. But that doesn't compel me to lambast the motives of others involved in a voluntary transaction. If both parties think it's a good deal, who are we to tell them they are wrong?
The important questions are whether the charges are clear, not pressured, and the service is good.