Why is the applicant a unit and the inventor a specific person?

The work of the company is done by people. Inventors are naturally concrete people, and companies themselves can't invent. Not only individuals can apply for patents, but companies can also apply. After the company successfully applies for a patent, the patent belongs to the company, but the inventor must be a specific person. If the inventor is entrusted by the company to invent something, the result of the invention belongs to the company, but the inventor must be a specific person.