You're right, it won't, because it took them 20 years to get there... It wasn't their professional reality fresh out of school either. Part of the problem here on SDN (and even on Dental Town) is the number of entitled newly graduated dentists who think they should be driving a Porsche 5 years out of school and purchasing a lake house. If that is your expectation, then you will be disappointed. But to suggest that 20 or 30 years in practice can't make a person very well-off in this field is to be completely disconnected from reality. The average income in this country is $50,000. How many of the dentists posting here are making less than that?
If we invested in what? You do realize that virtually every professional career is chock-full of people with the same negative pronouncements about their discipline, right? (See my earlier post) So what do you propose we do? Become personal trainers and open a gym? Do you know how many people do this and find themselves bankrupt? Maybe we can learn to code and open our own web development firm. Again, do you know how many people try this only to see themselves into years of financial insolvency. You are far more likely to succeed in dentistry than you are opening a restaurant, a store, etc. Also, you all keep talking about corporations as if they only affect dentistry. Guys, dentistry was one of the last holdouts against corporatization! Look at any other industry, they are all being overrun by corporations! You won't magically escape that reality by simply "doing something else."