At the end of the day, for most companies, too much debt relative to cash flows is just a sign of overextension. And aggressive "real" business practices is hardly something that companies were immune to prior to financialization.
Side note: You can run your personal finances 'debt free' and be in a better position when shit hits the fan too. :-)
Hertz went bankrupt because of the type of debt they took, their lack of cash-on-hand, and the aggressiveness of their business model. But the expected value of their decisions may well have been positive - a single failure is a bad way to evaluate a decision-making methodology.
In this case, I happened to use manufacturing inputs for a specific reason: cars are the inputs to the end product of car rental companies. In the same way it makes sense to pay for product inputs after you've sold an iphone, it makes sense to pay for the cost of a car after you've made the money renting it. If you have to bootstrap, you can't leverage economies of scale nearly as effectively.
I’m not convinced that people who apply prudent personal finance strategies ever come up with anything worthwhile in corporate or government financial scenarios.
The difference between a persons finances and that of a legal vehicle with limited liability or an entity which can print its own currency, these aren’t differences of degree, these (and other differences) change the entire game.
To make this more concrete, let me give you a recent example for advertising. I was watching a YouTube clip from user Jomboy Media about a baseball strike-out. I noticed in the background the stadium seats had Delta decals for marketing purposes. The fact Delta is permitted, effectively by government authority, to continue to advertise in the "market" because of their bail-out, distorts supply and demand. Namely, Tyson Foods, which was able to be assiduous with their profits over the years and provided wages to their employees during the pandemic, suffer from this blatant "synthetic" market competition.