The primary goal of these efforts is to control communication and the flow of ideas. Information is a control mechanism, since we act on what we believe.
In history we had four media revolutions (printing press, radio, television, Internet), each greatly disrupting and reshaping society. This is the fifth (social media and maybe AI).
All these revolutions had the same theme: increased reach of information, increased speed of transmission, increased density (information amount per unit of time), and centralization of information sources. Now we seem to reach the limits of change. No more reach, since our information networks span the entire globe. No more speed, since transmission times are close to how fast we can perceive things. The only things left to change are even more centralization and tighter feedback loops (changing the information based on how the recipient reacts).
Given all that, this media revolution might be the last one, so there is a gold rush among the elites to come out on top.