A single billion, when put in terms of money, is enough that - simply invested in GICs and bonds, earning a very, very conservative 1% interest - it would earn you ten million dollars a year in interest alone.

I would challenge you to even come up with a reasonable way to spend ten million dollars a year. By my back of the napkin math you could vacation every single day, living in hotels and eating at fancy restaurants, and still not make a dent in that.

Musk has an estimated net worth of $247 billion. You could fine him 99% of his current wealth, and he would still struggle to spend enough that he wouldn't end up increasing his remaining wealth every year.