lost on (one)
Unappreciated or not understood, as of an idea. That whole lecture was lost on me. What was he even talking about? The joke was lost on the audience, unfortunately. I'll have to rewrite it to be less subtle. The human cost necessary to make these first-world comforts is a hard truth that is lost on most consumers.
lost on one
Have no effect or influence on one, as in Ned's attempts at humor were lost on Meg, or David's kindness was not lost on his aunt. This expression uses lost in the sense of "wasted." [c. 1600] Also see you've lost me.