It is important for every hiring manager to hire people that fit your company's culture. Leadership will initially be responsible for implementing key components of company culture with their first hires and will continue to help shape it over time. Everyone at a company should fit into the culture and believe in the basic tenets of the culture. Hiring good people is a major driver of your success and a fundamental way of making or breaking a business. Elad Gil writes more about his experience with company culture and hiring the right people to fit.
Your company culture is the foundation on which everything you do rests. Your culture acts as an unwritten set of rules that drives behavior and cohesion across the company.
Cohesive, insular cultures are more resilient and can withstand shocks to it (e.g. pivoting multiple times) as well as can be extremely motivational / draw out the best in people (e.g. engineers at Palintir sleeping under their desks in their belief they are helping national security, the emergence of Google's “don't be evil” doctrine).
It is necessary for every potential employee to understand what a company's culture is before being hired. Those doing the hiring will need to be keen observers in order to ensure that new employees are the right fit. It is impossible not to notice when a person is not right for a job and does not fit in well. A strong belief in the company culture and a positive attitude are great indicators that a candidate holds potential. There are many ways to engage a potential new employee and more than one approach should help to safeguard against bad hires. Always keep in mind that company culture is an important consideration when hiring new people for your company.