Because making it look good now is more important than providing adequate support later.
“Who cares if it doesn’t work? It looks cool, and these mindless sheep will buy anything. Wait, that video camera’s not on, is it?”
If a pretty poster and a cute saying are all it takes to motivate you, you probably have a very easy job. The kind robots will be doing soon.
When you wish upon a falling star, your dreams can come true. Unless it's really a meteorite hurtling to the Earth which will destroy all life. Then you're pretty much hosed no matter what you wish for. Unless it's death by meteor.