If you could focus on just growing wealth, you are going to get it. But mindset isn't everything, we are talking about a situation where people are in a big financial trouble and when you are in a big financial trouble you are not going to get the best investment mindset that way.
If you have huge debts, big responsibilities, health, sickness, job firing, etc etc, basically anything that ruins your finance, you are not going to have investment mindset and do great, its not going to be that easy, so you should be considering how this is something that will take a while for you to end up getting. Of course if you can do a lot better and we could always do a lot better if we could have some financial leeway and freedom.
I agree with you. The most important is having the strength to control and survive challenges. The mindset alone can't even do anything about weath. Creating wealth is not even easy because you are going to pass through several challenges and problem, it is how you can be able to manage this wealth that determine how wealth grows. If growth of wealth is only about how people thinks everyone would have been wealthy because almost everyone have the investment mindset. If you ask anyone what plan do they have about their investment they will tell you an investment plan But it is not everyone can make it work.