This is often the case. It's absolutely not always the case. Undemocratic political systems don't even always have power concentrated in one person, and empirically here officials compromised by the US were caught up as taking bribes and removed from the system. Empirically too, the process was also used to drive up public support.

The data was also shared with other countries as it helped them uncover foreign CIA spies, which shows that the program certainly had a counterintelligence purpose.

Such total conclusions are very rarely true. Here, they aren't.