@Steak I mostly agree with #1.
I disagree with #2. After High Rise, they played 2/5 tracks from it live plus they played songs they had never played live before, like Pruno and Adhesive, along with other deep cuts like Church on Tuesday and Pop's Love Suicide. They were clearly trying to showcase their whole catalog, not just the greatest hits, meanwhile showcasing the new music and Chester's versatility.
#3 is subjective. I understand your perspective, but don't totally agree. Some could argue that each DeLeo brother contributed more to the band than Scott, as they wrote all the songs. I'm personally not making that argument, but it is a valid example of how subjective the concept is of who is most important to the band's success.
Edit: My point is that to simply point the fingers at the DeLeos (or Scott, for that matter) is missing the whole point. The DeLeos aren't perfect. They've done some stupid shit that I don't approve of. But so has Scott. I don't think the DeLeos' intentions were ever worse than Scott's. This is a band that got derailed and lost many opportunities due mostly to Scott's addiction issues. After 20+ years of getting [de]railed, it's hard to blame the DeLeos for some of their bitterness, especially as Scott seemed to become more ego-centric towards the end. None of them had perfect intentions always, but on the flipside of that, I bet if you asked each of them separately if they could go back in time and do it all over and have drugs not be an issue, they would all jump at the chance. You're getting too caught up on personalities, but the true tragedy of STP was Scott's addiction issues.
Because I have struggled with addiction myself, I don't really blame him for that. It's already incredibly hard to break free from addiction and maintain sobriety as a normal person; being a successful rockstar only makes it 1000x worse. He basically had the power to ignore all the consequences his addiction had caused in his life (including his children from his broken marriage) and just trudge on as a "functioning" addict for the rest of his life, by sheer force of his fame and talent.
It's not fair to just call the DeLeos greedy. You're doing them a huge disservice by ignoring a ton of complicated history this band has been through. It would be just as unfair to say, "Scott fucked up everything in STP because he could never kick drugs."
That's the problem with how addiction is treated in our society, and STP is a perfect example. Everyone's so preoccupied with "DeLeos this" and "Scott this," but no one's asking the right questions, like, "Why wasn't Scott able to keep his addiction under control? Why couldn't someone so successful and so admired get the help he needed?" You can also replace Scott with Kurt, Layne, Bradley Nowell, Shannon Hoon, and a huge list of other tragic talents, and then millions of regular people. I have three friends who committed suicide after their addictions ruined each of their lives.
Every decision that Scott or the DeLeos made regarding STP after Gibby Haynes put that needle in Scott's arm in 1993 has to be seen through the lens of addiction. Otherwise, you're not understanding it correctly.