You are of course welcome to your own opinion as we all are. But I would caution you to refrain from making false comparisons.
Mass media as we have today was not even dreamt of in Liszt's time. Your comparison is like saying that libraries were the internet of their day - sounds logical, but it's really apples and oranges...or, more accurately, molehill and mountain.
The piano/organ/harpsichord et al did greatly change music, but the impact they had was (due to the lack of transportation and media technology) did not spread nearly so quickly, much less approach what has been enabled by electronic instruments beginning with the Moog Synthesizer. Because of the technology that began with the Moog, an entire orchestra can be accurately simulated on a laptop. To me, that's about as revolutionary as it gets.
The same holds true of the guitar and other string instruments from the lute to the harp to violins and cellos, none of which could hope to duplicate what has been enabled with electronic guitars.
And while it is true that the roots of *any* social upheaval can be traced to an earlier time, where does one draw the line? The fall of the Roman Republic? Cain murdering Abel? One could say that the Civil Rights Struggle of the 1960's had its roots in slavery and the Jim Crow era, but it's still the 1960's when Civil Rights were fully enshrined into law. One could say that the anti-war protests had their roots in the isolationism of pre-WWI America, but it's still the 1960's when the anti-war protests actually happened.