Thanks for all those references. Don't know how I missed the 80,000 page on the topic, but that's a pretty big strike against it being ignored. Regarding your second point, I largely agree but there are surely some MB interventions that don't require full-time generalists. For example, message testing and advertising (I assume) can be mostly outsourced with enough money.
Thanks so much for the feedback - just edited with the improved formatting. Regarding your thoughts:
Will the Zoom be recorded for those of us unable to join live? If so, would you be willing to post the link as a comment under this post?
Another type of intervention that could plausibly reduce the influence of malevolent actors is to decrease intergenerational transfer of wealth and power. If competent malevolence both (i) increases one's capacity to gain wealth and/or power and (ii) is heritable, then we should expect malevolent families amass increasing wealth and power. This could be one reason that the global shift away from hereditary monarchies is associated with global peace (I sense that both of these things are correct, but am not positive).
For example, North Korea's Kim family is almost certainly malevolent in the way that this post describes, and the country's political structure enables this family to continually keep power.
On a broader scale, larger estate taxes and other economic policies to decrease wealth transfer might have a similar effect.