He was the inferiority complex guy ...

"The striving for significance, this sense of yearning, always points out to us that all psychological phenomena contain a movement that starts from a feeling of inferiority and reach upward. The theory of Individual Psychology of psychological compensation states that the stronger the feeling of inferiority, the higher the goal for personal power." (From a new translation of "Progress in Individual Psychology," [1923] a journal article by Alfred Adler, in the AAISF/ATP Archives.

... everything is about the struggle to gain power over others, which can become pathological ...

"The soul under pressure of the feeling of inferiority, of the torturing thought that the individual is small and helpless, attempts with all its might to become master over this inferiority complex. Where the feeling of inferiority is highly intensified to the degree that the child believes that he will never be able to compensate for his weakness, the danger arises that in his striving for overcompensation, will aim to overbalance the scales. The striving for power and dominance may become exaggerated and intensified until it must be called pathological. The ordinary relationships of life will never satisfy such children. Well adapted to their goal, their movements will have to have a certain grandiose gesture about them. They seek to secure their position in life with extraordinary efforts, with greater haste and impatience, with more intense impulses, without consideration of any one else. Through these exaggerated movements toward their exaggerated goal of dominance these children become more noticeable, their attacks on the lives of others necessitate that they defend their own lives. They are against the world, and the world is against them." (From "The Feeling of Inferiority and the Striving for Recognition," [1927] a journal article by Alfred Adler, in the AAISF/ATP Archives.