- Employers have a direct role in the social safety net, for example choosing health care and retirement savings options for their employees.
- Related to above, because there are limited gov't protections for things like vacation and childcare leave, and firing in general, employer policies form a bigger part of work/life tradeoffs.
- The US workforce has more diversity than most countries along several axes, including race, age, and immigration status, so employer policies about minority protections impact more employees.
Since stances on the policy areas above form the main battleground for American politics, companies make many decisions that are politically valenced.