It's comparatively safer than holding millions in government-controlled banks, property which can be seized with the stroke of a pen, physical wealth like gold which is tough to store and move, and has value anywhere in the world (not many people in Europe care about your franchise holdings in Riyadh).

In contrast, if you buy bitcoins, when you flee the country you can bring your wealth with a memorized 24-word code or a slip of hidden paper, and people in other places will accept your Bitcoin.