All of these authors wanted to use design as a means to communicate their political beliefs to the masses. Both Lissitzky and Rodchenko were pro-soviet as Marinetti was pro-fascist. All three believed that technological advancement would help them spread their messages, whether it be through the internet or the printing press. They also embraced technological advances as they believed it would change how people would communicate for the better.
I believe that these authors wanted to influence society through design and new forms of communication. Rodchenko wanted to use design in order to help society, while Marinetti wanted to use design in order to make his radical fascist ideas more palatable. Marinetti is the most problematic of the three designers. He believed that war was necessary for the advancement of society, he felt it was a form of cleansing of the earth.