Buffett invested in boring industries like insurance. As unexciting as it is, businesses like that basically are the invisible infrastructure that makes society work smoothly.
Don't misunderstand flashy at the only way to be important.
I think the right way to think about Berkshire Hathaway these days is that it's a highly decentralized, minimum viable civilization. They do everything from freight locomotives, to furniture-making, shoes, petroleum, chocolates and more. Then there's a layer of financialization on top of it all (insurance, re-insurance, loan issuance, market-making etc.).
If the U.S. became a failed state tomorrow, there's a genuine chance that Berkshire businesses would keep on operating and trading with each other, on Berkshire rails. It's like a hive of cockroaches -- businesses which are individually strong, that when woven together are un-killable.
Generally the latter. The very short version is that he focused on cash flow, and liked (re) insurance due to success managing float and risk. From there, he'd buy/invest stable businesses and brands. Insurance wasn't his first go, he started bookie work as a kid.
As for saving, he was the guy with a big pile of money in '08 (and other times). Someone you call when your business is dying or you want to retire; he gets the deal, not you. His Bank of America warrant play was a big one from that time.
I didn't finish snowball, but the first half goes over a lot of it.
I like WB as much as the next guy and while he was wildly successfully at making money, he hasn't really done anything else. His main motivation has always been to make money for himself and his shareholders, so why would we expect anything else?
Some of his biggest investments are in things like candy, soda, beer. Not exactly great for society overall and not really enabling anything other than diabetes.
He was already an massively wealthy in 2008 and just having a huge pile of cash and using it to make more deals is not some great achievement to be celebrated.
Yes he made billions off of his 2011 bofa investment, so good for him and brk but what did this do for anyone else?
If BH didn't exist would it really matter? I don't think so.
Don't misunderstand flashy at the only way to be important.