Wanting to work on issues with more impact than “just solving rich people’s problems,” Marcia Ludkin left her in-house counsel role in the fine arts business at Christie’s International and went on to become general counsel of the third largest labor union in the United Kingdom.

Ludkin worked at Christie’s in London and New York for nearly eight years, leaving in 2000 to pursue a private practice in San Francisco, according to her LinkedIn profile. In 2006, she returned to London as general counsel of GMB, formerly General, Municipal, Boilermakers and Allied Trade Union.