When they gathered more wealth and power than any other group, they became the world’s leading power, which allowed them to determine the world order. When they lost that wealth and power, which they all did, the world order—and all aspects of life—changed in profound ways.
This is probably the reason fiat currencies have always failed, country-wide mismanagement by those in power.
Is bitcoin safe from such mismanagement? For one it is independent from any one nation. But still requires human management. Gold doesn't require human management but is difficult to exchange value with. And gold has lasted as long as it has as a store of value.