There's also good money to be made telling people what they already know, usually in the form of a report and/or powerpoint deck
Ah, but you only tell them the things they already know and want to hear.
That filter is crucial in any kind of advisory/consulting work. You're there to confirm biases, in 95% of the cases.
these are what self help books are.
> report and/or powerpoint deck
if you can sell someone on a second report to verify the first you can make a lot of money too.
"a man with one watch always knows what time it is, a man with two watches is never quite sure"