A professional knows of ways to get you to the top of an alphabetical search list. If they don't have them call me. Go down and get a good professional photograph. A sales person is marketing themselves to the public. Maybe many thousands on the web.
People are visual by nature.
When looking for a sales rep, the picture is a large part of how people choose. No one ever picks someone by their stats only. Having no picture at all would be worse. Have it scanned and retouched. This is your livelihood for pete's sake.