Ruth Thompson graduated from Muskegon Business College and established a legal career, becoming a judge of probate in Muskegon County. She transitioned to public service, becoming the county's first female state representative and later serving in the Michigan House of Representatives. Thompson's career included roles in federal government agencies and the U.S. Army, culminating in her election to Congress, where she made history as the first woman from Michigan to serve in both capacities. She also held leadership roles in women's prison commissions and was an advocate for children's rights throughout her career.

Ruth Thompson's political career is marked by a blend of progressive advocacy for children's rights and unexpected cultural conservatism, particularly in her legislative attempt to ban rock and roll records. Her ideological positioning is complex, juxtaposing a forward-thinking stance on women's representation with a surprising push for restrictive media regulations. Thompson's rhetorical style likely balances a commitment to social justice with a protective, almost paternalistic view of public morality.