OceanGate, FTX, and Cambridge Analytica were not headquartered in Silicon Valley. Out of the companies on your list Silicon Valley can only take the blame for Theranos.
The term silicon valley has long since transcended geographic boundaries to signify the tech and vc/startup sectors as a whole. Facebook and Amazon and Uber and Theranos and FTX are all a part of it. It's about the culture and the people that participate in that culture, move fast break things etc. That's what's been going through trainwreck after public trainwreck. And even if you wanted to tie it to a geographic region, which frankly is irrelevant - the vcs are based out of here
Silicon Valley investors rejected Theranos. Most of them actually consider Tharanos a great victory. Tharanos funding come from lots of large private investors, like family fortunes and so on.
That particular overconfidence in bashing Theranos as an outsider company who would never have been able to fool Real Silicon Valley (tm) is definitely a core part of the narrative that's developing, since nobody believes they'd have disowned her if she had succeeded, and those very same VCs got rugpulled with FTX not that long after making all those confident assertions look very silly in hindsight.