Investing is all about discipline, not money. Most people could save 5-10% of their income if they managed to stick to their guns.
"saved almost 90% of my income for the first 5 years". That's amazing but only possible if and when you are on your own or have a very favorable set up for life. Most people have a hard time putting just 10% of their income aside for something that can turn into a huge cushion sooner or later. Most people also don't have the money or set up, to begin with.
I think it's highly unrealistic to assume that the average person could save 90% of their income. Some people have low paying jobs, others have wives and kids - that really only works if you're in your shoes where you shared an apartment with three people and had no responsibilities.
Why not tweak your strategy to make it suitable for the average person? I think that would help a lot of people.