As a South African Air Force World War II veteran during the 1950s, Schwarz co-founded the Torch Commando, an ex-soldiers' movement to protest against the disenfranchisement of coloured people in South Africa. Described as South Africa's "most feisty politician" and a political "maverick", he was known for his parliamentary clashes with the apartheid government over its racial and economic policies. In his political career spanning 43 years, in which he gained respect from across the political spectrum, he never lost an election. In 1988 he received the Order for Meritorious Service and received several Honorary Doctorates. He was also one of the South African Jewish community's foremost leaders and spoke out strongly against anti-semitism.