Consumption is the most valuable use of money. Saving is trading consumption now for consumption later. The later you delay your own consumption, the longer it will be until the person eventually providing your goods and services will actually be paid for them. Investment is somewhere in between, where you pay something in advance for the consumption to occur later.
I don't really care if Buffett spends on one $3000 breakfast sandwich, or 1000 $3 breakfast sandwiches, or 10000 $0.30 vaccinations, so long as he spends. He certainly has ample savings and investments for himself, and doesn't seem to intend to support his own descendants in a lavish lifestyle. That spending is what pays other people's living expenses. It is up to him to spend in a way that reflects his personal values and preferences, but if he chooses to accumulate wealth, rather than circulate it, that benefits only him, and no one else. Spending only $3 on a breakfast signals that Warren Buffet does not greatly value breakfasts, or the cultural practice of breakfasting.
That's fine. I'm not a big fan of it myself. But when I skip breakfast, I may be signaling that I don't have $3 to spend on breakfast.
Strictly speaking, hardly anyone does genuine saving anyway. Most people with money to save will deposit it in a bank, which then invests it and just pretends it is being saved through mathematical fictions. The recipe for anti-disaster is to spend on insurance and to buy financial instruments that promise a steady income. Burying your gold just makes you worry about where your gold is buried.
Once you have that $X in your portfolio, and are living comfortably on the 3% return from it that you can safely spend annually, then in my opinion, it is then your economic responsibility to spend that whole budgeted amount on things you like. If you aren't spending more, you must be entirely satisfied. And if you are entirely satisfied, you don't need more money to spend. If you don't need more money to spend, you don't need to buy additional income. And if you don't want to spend and don't need to invest, then what are you saving it for? If you continue past that point, you are crossing a rich-person event horizon where you can't send money out as fast as it comes in. You will start sucking ownership out of the economy and asphyxiating businesses that would otherwise be viable. In the end, you will either have to start frantically giving away money, people will have to start stealing it from you on a massive scale, or you will become a wealth singularity as everyone around you starves.