Well I did it when I had a very successful SAAS 20 years ago that still exists. I ended up with multiple competitors who stole my business model completely, right down to the micro payment system I devised. I had a fantastic run, became friends with several of my competitors, and eventually sold my business to one of those competitors. I never hid anything about how the business was run. I just delivered on the fundamentals and wasn’t greedy.
I never sold a course or a book or charged for any advice.
The funny thing is, although I mentor people for free they often don’t call after the initial conversation because they think I’m somehow trying to get money out of it.
So I guess you’re right?