Because nothing says "you're a loser" more than owning a motivational poster about being a winner.
Remember the quarterback who led your high school football team to the state championship? He just got laid off from his job selling insurance in Akron. But he’ll always have 1991. And a failed marriage. And a knee injury that won’t go away.
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.