The adage I tend to adhere to is: "The house always wins." Under capitalism, those who have the most capital are "the house".
Companies whose market caps are measured in the trillions of dollars are "too big to fail" insofar as, if a situation arises that meaningfully threatens their bottom line, they have enough weight to throw around to avoid that eventuality. Buy a few congressmen, get some new government contracts, get more favorable loan terms, yada yada. Money talks.
A cursory internet search suggests that no company with over 1 trillion USD in market cap has ever gone bankrupt. At that level, they become somewhat self-fulfilling success stories in the same way people born into rich families are seen as successful despite not necessarily doing anything innovative or clever.
My parents and all their friends used to use PTT with their Nextel phones. It was a super handy feature. I wonder why it fell out of style. Seemed more convenient and less tedious than a phone call for short communications.