In the 1932 Presidential election Hitler received his support from the business classes, the aristocrats and the monarchists. Hinderberg received support from the workers.
Hitler's party funds before he became Chancellor came from German business interests, not labor unions.
After he assumed power the labor unions were banned, but he maintained the business cartels and strong links to the Army and Hindenberg's son. Meanwhile he purged the Leftist elements of the Party on June 30, 1934.
Too many people confuse the name of the Party and the ridiculous socialist talking points from Mein Kampf with the actual practice of the Party from 1929-1945.
Go ahead, name me one labor union leader that existed in 1935. Meanwhile, Krupp and friends remained in control of their companies.
Stalin was a Leftist. Hitler was a Rightist. Both were very evil mass murderers. Neither were "liberal" or "conservative" in any sense of the term.
But to claim Hitler's political base was on the Left (workers) is simply false. He allied himself with the Rightist establishment.
I had a political science prof who maintained that the ideological political "spectrum" wasn't a straight line, but a circle. He said that some people, like Stalin, can be so far to the left, and others, like Hitler, so far to the right, that they're standing right next to each other on the curved political spectrum.
Anyway, with totalitarian leaders of whatever stripe, *evil* is a bigger motivator than political philosophy.