Whenever we think about success in investments, the immediate association or measure is mostly often the financial gains, how much money has been made from the investment, the ROI or even the size of the portfolio, but we often forget to look at a more nuanced perspective of measuring an investor's success, a quality that is extended far beyond mere monetary outcomes, which happens to be the wealth of knowledge and breadth of experience which the investor has achieved throughout their journey.
Take your wealth of knowledge and give me the money (ROI) 
. Every investment targets to generate profits and when the profits and not knowledge. Weather the investment generated profit or loss, the investor will always gain knowledge from the invest in the way of identifying areas of improvement to make more profits and cut down cost. You don't only learn from failures as most people make it look, especially the motivational speakers, learning can come from being successful in business and also from failure. That your statement "Take your wealth of knowledge and give me the money" is something that is very disturbing to me, do you think you can become rich without wealth of knowledge, they can give you huge amount of money and you can still go broke within some time so having a Financial or wealth knowledge is very important in other to grow and maintain that growth.
Do you know that maintaining wealth is more difficult than to become rich, and without having wealth of knowledge is impossible to maintain it.
You are right in this your statement "learning can come from being successful in business and also from failure" actually just like you said some people thinks that it is only failure that teaches you something no that's not true at all when you are working on something and you tried it in a particular way and it worked you have learnt something from your success.
When you come to investment like Bitcoin investment or trading there are somethings you are doing and you learnt it yourself and started doing it, you are doing it because you succeed using or doing it.