That's fair. I was specifically referring to the McDonald's bit (and what I know of their former dress code). I had meant to look up the songbook thing.
EDIT: Actually, looking at that songbook, I'd still say it leans more towards controlling than infantilizing. By having people participate in a common display like that you get them to act as a group (positive thing), but based on the lyrics they're almost like corporate versions of jingoistic/nationalistic songs. It's a brainwashing thing.
This is still very different than infantilizing. It does signal a lack of respect for their employees (to a degree). But it does not indicate treating them as children.