Why shouldn't they take pride in their work? Its honest and important work. Not every building can/should be preserved, tearing down these structures is important to remove dilapidated safety hazards and/or build something new
What I liked was, at the end of each day, the crew lined up all the equipment and put each in what I would call a "majestic" pose, like with its arm looking purposeful. I thought it gave a cool, and professional look to the construction site, and showed they obviously cared about what they were doing, to clean up and pose the equipment, vs just leaving it where it was when the shift ended.