The equation of true wealth.
It takes a lot more than a successful business to be truly wealthy.
When people are striving for wealth, they usually turn towards building a business, and for good reason.
In today's world, it's the only real way of achieving a high degree of wealth, unless you can hack a country and install yourself as a president to never be removed.
Although the latter option seems to be getting quite popular, the former is a lot more simple and honest.
It also gives you a better chance of actually making a difference in a world driven by a free market. However, you have to know the equation of it.