Real estate developer Joseph Leopold Eichler—a former egg and butter salesman—is considered by many to be a social visionary, thanks to his desire to bring affordable modern architecture to the middle classes. He was inspired after briefly living in a Frank Lloyd Wright home.  Photo 1 of 14 in This Pristine Eichler in Oakland, California, Just Fetched $2.2 Million

This Pristine Eichler in Oakland, California, Just Fetched $2.2 Million

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Real estate developer Joseph Leopold Eichler—a former egg and butter salesman—is considered by many to be a social visionary, thanks to his efforts in bringing affordable modern architecture to middle class families.