That is only partially true. Company has to be within acceptable commute range for the employee. Lets say our company needs several employees. It is necessary

That is only partially true. Company has to be within acceptable commute range for the employee. Lets say our company needs several employees. It is necessary to have critical mass of employable people living inside that range. The problem here is that 15min commute vs. 45min commute doesn't matter much to the employer. So companies try to go near major traffic routes at the outskirts of big cities. There employable population and cheap property converges.