Everyone always wants to look and feel their best. Not everyone wants to do the work that it requires to actually do this, so instead, you rely on some clever finagling to achieve this effect.
Maybe you won't diet and work out or stick to a strict skin care routine, but you can convince the rest of your friends on social media you're fabulous by picking the right photo filters, lighting, and angles to pull off the aesthetic you're going for, which so happens to be one that puts you in a more desirable light.
I don't think I need to really explain how much of a difference a good photographer makes when snapping photos. Even a structure as iconic and beautiful as the Eiffel tower can look vastly different when you've got a pro behind the lens.