Not so much for pointless regurgitation, but if I pay a carpenter to build me a wall I don’t want to end up with a house. A house won’t keep the neighbors out of my yard as well or as efficiently as a wall. There’s value to me in getting the wall that I want so that it can do what I want. There’s value to a carpenter learning what a wall is (or more realistically, a certain style of wall) so that he can excel at his trade. Walls exist in and of themselves, just like war and just like the starts of wars.

For this particular wall to my right, you could say there is low value in knowing that this one is a wall, but that might be only because such knowledge has become automatic to me. My 5 month old probably values that info more. On the other hand, life would be strange if I couldn’t distinguish what walls are, I might waste a lot of time trying to open or eat this one.