The restrictions are what a lot of atheists and agnostics will argue is the cause of humanity being held back from advancing to our true potential.
I tend to somewhat agree with this theory when I think of how many advancements we could make in medicine alone. HOWEVER COMMA.... I also shudder to think about where we sould be without religion.
One of my favorite quites about that subject happens to come from a movie (Jurassic Park)

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"You were so busy being happy with the fact that you could create these dinosaurs you never stopped to think if you should."
Same thing with mankind. Mankind is so busy working on advancements in science and technology that we sometimes forget to stop and ask ourselves if we should. I believe the end of civilization will come due to that arrogance some day and religious leaders will find a way to "make it" fit into revelations somehow and point threir fingers saying I told you so...
So in a funny way we will all have been right
But by then will it really matter?