To me this only means that even if you are very smart in some area of knowledge that doesn't mean that you know everything, socialism in theory sounds very good and that is what makes it attractive to many people, but when you see the reality of how the world works you understand that it is never going to work, capitalism has many defects and we can all agree on that but at least it is a system that works, this is very similar to democracy, we can see the problems that democracy has but all the alternatives are even worse so we stick to democracy.

And the same happens with capitalism, despite all its flaws it is the best system that we have and until something better comes along and that it can prove that it can work for centuries or even for a longer time frame then we need to stick with capitalism.