Jef bezos net worth is 284 billion, a very bad investment yields 4% annually, that roughly translates to 11.4 billion per year, or around a billion per month, or around 31 million per day, 1.3 million per hour, or 22 thousand per minute.

In the time it took me to write this, of Jeff Bezos is stupid (which he's not) and does very bad and safe investments he already earned over 100 thousand. The time it takes you to think on an innovative idea to spend money they already earned more than what you would spend, and the time it takes to do anything they already earned more. Think about this, of they wanted to buy a million dollar house on a different country that would take them 12h to reach by private jet, they literally lost no money buying the house and traveling there to sign the papers and fly back.

I dare you to tell me something that would actually lose them more money than what they would earn in the time it takes to enjoy it.