Earlier quoted context omitted.
If you want long term focus, invest in an index. No single company can weather every storm. Sometimes they need short term focus to survive in the long term.
I think the idea is that a lot of the perceived instability in the economy is _caused_ or at least much amplified by the nature of stock markets. Changing how one thinks about stocks and what the ideal of a "healthy" company looks like might alleviate some of these problems.
Where did you get this idea? I don't see anyone saying it. Consider what might happen if you freeze the ability for people to borrow money. The stock market allows capital to move around more freely.
I notice this is your first comment in a year and a half. Welcome back.