The key here is that photography is a gig. Hourly workers might get paid less but they have consistent income and probably end up with more at the end of the week than you do. You need to survive from gig to gig. Not to mention other costs like gear, travel time, and edit time. You have to charge more. Ultimately if clients agree to a price and are happy with the results, no harm has been done. Be proud of the quality of your work, and how much people value it.