I believe that deep down, many men don’t respect and value low maintenance women. Also, many trade in that so called “down to earth” woman for a high maintenance one as soon as they level up and make bank. It’s a tale as old as time.
I don’t see any benefit for a woman to present herself as a low maintenance person. She’ll end up getting burned and will become resentful when she doesn’t get what she wants out of the relationship.
It also costs money to look good. Skincare, nutrition, dental hygiene and work, good clothing, high quality makeup, exercise, money for hobbies etc. These are investments.