Answer:
by Randy Carey:
Once a check becomes properly endorsed, it becomes a bearer instrument. Anyone could deposit or cash the check. Barring any other unusual circumstances, it is really a business decision to accept the check for deposit to the business account.
Answer:
by John Burnett:
Contrast that with the situation in which a check is payable to a business entity. It would be incorrect to allow the business owner to negotiate the check to himself/herself and deposit it to the owner's personal account. That's due in part to the fiduciary duty of the owner of the entity to the business and its creditors.