Lovely. A psychological study on how to manipulate people into supporting your social agenda. How about using, you know, reason? Treating them like adults? Give them pros and cons so they can make a rational decision?
This might not be a morally bad thing, or an overall net negative in terms of utility; when politicians are bad enough, executing them really does have an affect on the upper class. But it's seditious, which is why folks don't want to talk about it; they don't want to be arrested nor first up against the wall when the revolution comes.
The amount of abuse that the upper class has committed upon the typical person is so large that there's no way to peacefully empower them anymore. 10% of the USA is impoverished, 30% cannot afford to own housing, 40% are financially insecure, and our Pareto 80/20 distribution of wealth has slid over the past two decades to nearly 90/10 [0]. Honestly, that last number doesn't stress it enough: Fewer than a thousand people have over half the wealth of the USA [1] and it gets worse with each recession.
Rationally, how would you correct this situation? The guillotine crowd has a solution, and the only cons are that it's illegal and that it can get out of control quite quickly. Meanwhile, the closest thing to a mainstream political solution comes from Bernie and the Democratic Socialists, and their reforms are widely unpopular among the political establishment.
[0] https://en.wikipedia.org/wiki/List_of_countries_by_income_eq...
[1] https://www.politifact.com/factchecks/2011/mar/10/michael-mo...