She was a social activist, creating the Actor's Union and inspiring the creation of “Rosa Mexicano”.

[2] She also was the voice of Snapdragon (the purple flower) in Alice in Wonderland, Aunt Sara in Lady and the Tramp, and the fairy Flora in the 1959 version of Sleeping Beauty.

[13] Shortly before her death, Schiller pushed the National Association of Actors (ANDA) to form nurseries for the children of actresses.

[14] Several of her acting friends, including Socorro Avelar, Anita Blanch, Dolores del Río, Irma Dorantes, Gloria Marín, Carmen Montejo, Silvia Pinal, and Amparo Rivelles joined to form a group called 'Rosa Mexicano'.

After operating in temporary spaces, the first stones for the formal location were laid on 30 April 1972, shortly after her death.