When a car has a leaky tire, the problem is obvious and the solution is simple. The car owner could shop price to find the cheapest, reasonably competent “grease monkey” to make the repair. (Grease monkey is an uncomplimentary term for a low-end car mechanic.)
But if a car has a more complex problem then an expert with experience and knowledge is needed. Shopping only price would be foolish.
Photography is similar.
When someone needs a passport photo, they could shop price to find the cheapest “button monkey” who can shoot passport pictures that meet government regulations. (Button monkey is an uncomplimentary term for someone whose photography skill is limited to pushing the shutter button.)
But when a company’s reputation or corporate image is at stake then an experienced corporate photographer or commercial photographer is needed. Shopping price would be foolish.
Business portraits are much more important and valuable than passport pictures. Photography for a company web site or any marketing collateral is too important to risk with lowest bidder. This is no time for monkey business.