If you give a machine a heart it will get lazy. Hearts give us emotions and with emotions we become weak. Why would a machine with a heart want to work anymore? Nah. It's lazy time now.
The machine is so lazy it won't even wear its tie (たい) anymore. That was the only official thing left about it, but now it's as lazy as a human. Would a lazy human put on a tie? I don't think so.