If I have say... cars as a hobby. Turbochargers, wheels, parts, say I spend 20% of my disposable income on it and I have a good portion of my net worth tied int

If I have say... cars as a hobby. Turbochargers, wheels, parts, say I spend 20% of my disposable income on it and I have a good portion of my net worth tied into it as well (the cars themselves, the parts, etc). Elon Musk spending $44b (which I don't think he did as all cash all at once/financed some) of his $250b net worth is like 17.5% Even if it makes $0/goes to $0, it's just basically his hobby/a passion project for him, no? Should his goal be to make money/not lose money at an enormous scale? Probably. But he's obviously eccentric. Isn't this kind of on-brand for him? He probably thinks he's better than most people. "Your hobby is tennis, my hobby is international social media platforms".