This is not a working guy vs learning guy thing.
If you can relate to the sign and it's message then it is addressed to you.
If you can't, then just ignore it and move on. It's not for you.
If you see this sign and for some reason it bothers you, irks you, makes you feel guilty, resentful or worthless. You should analyze why it is that you are feeling this way:
If it's because you realize that you are so far removed from the yeshiva world and yeshivalite that you can't even relate... Then these feelings should be channeled for good. - Take it as a wake up call.
If you still can't deal with the fact that you can't relate, and feel the need to delegitimize, and demean the message and it's messengers, you're sadly pretty lost. Good luck!