Can you name a single completely unscientific wild assed guess (which is exactly what you have freely admitted Maslow's hierarchy is) over 50 years old that is still taught to students of physics, engineering, mathematics, or any other credible academic discipline? Do you see the notion of a static universe still taught to physics students? What about phlogiston and the luminiferous ether? Do you see these things? No, you do not. And do you know why? It's because most disciplines are populated by scientists concerned with the credibility of their field and so they don't pass on unscientific bullshit to students more than 50 years after some crank came up with it.