

Honestly you can just remove the ambiguity and put the number right at 1 billion dollars of net worth. Up to that point is obscenely wealthy, but a billion is the line that guarantees the majority of your wealth came directly from the exploitation of the masses.
You can’t ethically make a billion dollars as an individual when the working class sees 1/10,000th of that in a year as doing fairly well in most areas.
People here are also missing one part of the android security model. Yes, you can overwrite the system partition arbitrarily while leaving the data partition intact with an unlocked bootloader, that’s how updates work.
However, the moment you make any changes to that system partition it won’t match the developers signature and the apps on the system will throw an absolute fit. Look into building your own lineage ROM and flashing it over an official build, it’s an entire process that requires your data partition to be unlocked (ie. phone booted and pin entered) to keep your data, even without making changes.
Realistically it isn’t insecure, if you set a passcode your data is encrypted and if someone mitm attacks your rom you will immediately notice stuff breaking all over the place.
The whole bootloader locking is purely vendors trying to force you to buy new phones every few years instead of the user backporting security patches indefinitely, not any practical security for the end user.