Why branding?

In class, we have 5 whys to find a right SEED question and I wonder why branding.
Everything the company tries to do is to get profit. So, the simple answer is that branding is for profit.
According to the title, we look at two aspects: for internally, branding supports for employee satisfaction, loyalty and achievement; and for externally, branding differentiate our company from other competitors, influences the customer's purchase decision and adds value to our business. For further discussion, please look through the above mentioned title.