Woah, that ending gave me goosebumps. I think the message is actually pretty powerful, at least the message I got from it. Doing the same thing every day, all day, in the same routine, can drive someone mad. Especially in jobs like those. I think this was a message that you should try something different in your day, or try and break routine. To live a little. To not fall into the same constants that otherwise make you unhappy.
The music change at the end with the other worker jumping I think drives that message.