To your point, but more bluntly:I think the bolded bit is the biggest problem with your outlook - there doesn't exist a multi billionaire owner who's main focus is success on the pitch. Primarily because one doesn't become a multi-billionaire by inordinately focussing one's attention on something with such narrow, fluxuating, and largely uncontrollable profit margins as football.
You could argue that Citeh and PSG do, but then you're into discussing inheireted, entitled wealth and whether or not actually winning is the intention or the storefront to something more dubious. For everyone else, owning a football club is largely vanity entangled with property development and the potential to leverage ownership of a football club/stadium and membership in an exclusive club to the benefit of other business interests.
Even Abramovich was clearly in it for the benefits of redeveloping a massive chunk of London real estate, and after his plans for sites like Battersea went tits up and he's faced hus immigration struggles he's pretty much stopped putting money into the club.
There's certainly no one operating a club at the level you/we aspire to that is owned by an individual focused on on-pitch results. The days of top clubs being owned by local boys made good who attend every match and sign blank cheques for the manager in hopes of winning glory are gone.
City and PSG are propaganda machines for countries with horrible human rights abuses.
Chelsea was purchased as part of a money-laundering machine for Putin through Abramovich.
This is not a standard we should hope to emulate. I'd much prefer the Liverpool route of smart management and adequate resources. I think we are trying to tread a similar path.