"But in running this non-existent firm I have learned quite a bit about the value of those "likes" prized by so many big brands, and the usefulness of Facebook'

"But in running this non-existent firm I have learned quite a bit about the value of those "likes" prized by so many big brands, and the usefulness of Facebook's advertising." Shouldn't he have said useLESSness not usefulness? It's pitifully useless, let's not be politically correct and say it's not that useful.