I think you just combined Occam's razor with Murphy's Law....but that's a trivial mistake and I won't argue with you on that.
I see the point in your argument, but risk is rarely as powerful an influence on human decision making as reward. When they first tested the atom bomb at White Sands one of the scientist hypothesized that the nuke might make a chain reaction that would destroy all life as they knew it. They did it anyway o_O... and hey we're still here and so far nuclear energy has been a positive thing.
there, the benefits outweighed the risks.
and yes, i'm tired and wrote occams razor instead of murphy's law, but most people here wouldn't notice