In a competitive world an attractive appearance is a real advantage when it comes to applying for a job. If there are two equally qualified applicants for a job it is often the more attractive person who gets the job. It is just human nature.
Supposing there were two equally qualified and equally attractive people after the same job, yet one had rather noticeable bad breath. Bad breath, like body odour, is not talked about that much, but it is a problem for sufferers that adversely affects many areas of their life.
Anyone young enough or active enough, to seek romantic adventure, is going to be seriously disadvantaged if they have bad breath. There is considerable pressure put on us now to have a white, gleaming Hollywood smile, yet a smile from a mouth exuding noxious odours is not so enticing. It is just as important to have fresh breath as a good set of teeth and an attractive smile.
You may not perhaps ever have considered the possibility that your breath smells bad. Bad breath is often mainly due to smoking, and it is just one of several undesirable effects of smoking, such as premature skin aging and the increased risk of lung cancer, but it is one of the easiest to cure. Smoking is increasingly seen as antisocial and no longer in many public places. Not only will you live longer but you will cure your bad breath at a stroke.
You can overcome your problem and get fresh breath again by talking over the problem with your dentist. The reason that careful teeth cleaning is so important is that, even small amounts of food residues left in between teeth can be enough to cause smelly breath.