In climbing, there are no such standard or at least no one builds an anchor or uses a biner with such safety factors in mind. Most people feel that two cams in the crack and leaving one draw on TR does the job and there they go off the wall.

I am confident that most manufacturer know why they build their gear in such ways, but does public has any idea why these ratings are for ?.

Do we feel safer with a gear rated 5 times more than what we could generate during a fall ?

Thanks for the correction. When I said dynamic force, I think I should have been saying shock loading. Is shock loading measured differently than other kinds of force, i.e. a different unit? I'm not arguing I'm just asking, because the way I understand it a 225 lb or 1kN person does not weigh in at 1kN when loading the rope immediately after a fall, while they still weigh 225 lbs. Or am I misusing weight for mass in that scenario?