I don’t think history agrees with what you are saying. From what patterns I notice , dictators rise because they become popular with the masses thanks to the exploitation of grievances both real and perceived, and only when it seems inevitable that they will wrest power from the established order do capitalists align with themselves with the fascists in order to protect their interests and their own heads. The wealthy tend to be one of the first targets for any dictator, as they are the ones who have the means to unravel their power.