You could say that about literally any shady business. Imagine seeing a PDF proving tobacco leaders knew for decades that it caused cancer and saying what you did.
Being monetarily successful does not mean you’re good or shouldn’t be criticised.
None of those videos is easy to make.
Sure, it's maybe not great to be so impressed by logistics or supply chain of a tobacco company, but from a business and systems view some of it is interesting
None of those are easy to achieve.
Sure, it's maybe not great to be impressed by the logistics of a militarized drug cartel, but from a business and systems view it's quite interesting. /sarcasm
This is literally cocaine logic, i.e. because I feel good when taking cocaine, it's good for me. Ergo, cocaine is good.
You copy this communication in your non-profit organization that feeds starving children and find that you are able to feed 50% more children when communicating with this more efficient method.
This is not "literally cocaine logic", it's learning from others.
To use an example you'll probably agree with more: You can hate the lyrics of a given musical artist but copy their production style and in doing so give your lyrics a better platform from which to be heard.
Methods != end goals
You can adapt effective methods currently used to accomplish questionable things to accomplish more noble things.
although, to be perfectly honest, I doubt you'd learn much from Mexican drug cartels that would apply to software, as the markets are completely different.
Ok, but the methods (hustle, grind-culture, high pressure on marks) are here just as questionable as the end goals (Be the biggest Youtuber).
What can you learn from Mr. Beast? Nothing that a lack of conscience and some basic psychology of engagement couldn't teach you.
To reuse your analogy, what if you could communicate information by arranging the corpses of your enemies in a certain pattern, then use international news reports to get the messages across.
What could this teach us about communication? Nothing.