I do agree it's important to love yourself, but it's good if that is not your ONLY priority. You can easily love yourself and therefore harm others around you because you act selfishly, allowing others to be damaged or even deliberately damaging others to get a better situation for yourself. For example you could love yourself and feel you deserve a new car so you sell bad life insurance to hundreds of people in order to get the commissions to get yourself that new car.
By having several priorities, each with a different realm they affect, it helps to keep you in balance. What would your other priorities be?