Coincidentally I have been reflecting on this as well, due to stuff in my personal life. For me I used to have the mindset that money can't buy happiness and it's all in the mind etc. But over the years, I realised life isn't always black or white.
Money can improve the conditions for happiness, but it suffers from diminishing returns.
So now, I think my mindset has slightly changed, and this statement probably summarised it well. Having a reasonable amount of money does allow me to not worry about the basic necessities in life, and when emergencies happens and require an one off expense, be it a medical bill or just needing to get a new washing machine to replace a faulty one, I know I am going to be okay.
It is the reason that a lot of people also become more conservative with age - experience.
And this is a luxury many don't have. It is a hard life.