Whether it's "right" depends on the goal of course, but in this case I'm not understanding your point because nobody is prosecuting those companies for doing this.

In any case, these kinds of blanket statements are not very useful, because each case tends to be judged on its own merits. For example, yes, enough people believe that monopolistic tactics are not "right" and laws reflect that.

yes, because that second "group" is actually an international corporation leeching on society to increase its value for small group of investors

Is it okay for Russia to influence elections in the EU or the US by spreading misinformation?

This is also an instance of a group using its power.