True on G1 Megatron, plus, Soundwave proved that loyalty to Megatron could be a pretty cool thing, given that literally nobody is cooler than Soundwave. At the same time, Destro is pretty cool too, even if he isn't exactly a Cobra employee and somehow, so are the Dreadnoks.
You have a point about organizations, but for the most part, isn't that how sports fans tend to behave, with more loyalty to the organization than the players? For example, Lions fans--supposedly "hardcore" fans--will hate the coach and the players more than anyone else for their lack of success and rather than hoping for a Rocky-like turnaround for the players, they will just as much just be hoping for them to be gotten rid of and replaced by better players and a better coach and look back on them with scorn for their failures.
As far as Sanderson, I think he definitely did betray Douglas on multiple levels, but at the same time, apparently he also does still have a reverence for him. I think maybe the guy is just a certain sort of person who doesn't necessarily understand relationships and loyalties in the same way that some other people might. I think the lack of blowback comes from the love people in the wrestling community have for Cael Sanderson. I remember sitting in the stands with Iowa Hawkeye fans--and you know how psycho they are--and they just couldn't wrap their mind around Cael Sanderson doing anything wrong to anyone ever. Reminds me of how my Dad--and he was a smart dude, English prof, etc--couldn't seem to comprehend the concept of Dan Gable or Iowa wrestling being "dirty"; it literally just didn't compute.
I also personally think he did treat Bubba Jenkins pretty poorly, though Bubba seems to have dropped his past grudge against Sanderson. And as you alluded to, wrestling coaches have tough decisions on their shoulders quite often. I love John Smith, but I totally see the argument for him having been in the wrong with what he did with his son Joe Smith as far as having him take the starting spot of another wrestler super-late in the game so that he could wrestle at what might be a better weight for him. Though it was in a wrestle-off, at least. I guess my point in bringing that up is just that coaches have a lot to navigate and deal with so I'm sure you're going to have situations where sometimes there's no easy decision and people are gonna feel like they got the short end of the stick.