There is, however, a great difference between power desired as a means and power desired as an end in itself. The man who desires power as a means has first some other desire, and is then led to wish that he were in a position to achieve it. The man who desires power as an end will choose his objective by the possibility of securing it.
Source: Power, 1938.
More info.: https://russell-j.com/beginner/POWER17_020.HTM