He's simply very insistent that people realize how much good they do and be happy they're helping so many people. He's spent a long time in a place where the staff has been run down again and again, seen them all break more than once even with all the good they do, and he knows positive reinforcement helps quite a lot. Mulcahy isn't about to let the people in this different environment fall prey to the same problems, at least not as much as he could help it.

"Ahh yes, 'And the second is like unto it, Thou shalt love thy neighbour as thyself.' Words to live by here, as with anywhere. I hope it continues in that manner, and to that effect, I'd like to offer my help if you ever need it anywhere. Admittedly I'm not much of a cook-" or any sort of cook "-but I'm happy to put my nose to the grindstone wherever it's needed."