Though there is very deep goal for Nobel peace prize to give to an organization for working on removing nuclear weapons, I will tell you why it is not possible.
Creation happens with a purpose. The enemies always keep an eye to misjudge others capability through advantage. The great men should possess the strength to stop the aggression with thundersome capability. Asking for favors is always the category of dogs and wolves. In theory, the great, capable people never ask for favors to disregard their principles. In a nutshell, those with a weak mind always quarrel for divulging their strengths to show their muscles. The one who maintains strength but restrains is regarded as the follower of peace. The Nobel committee should have done better if they say the organization which strives for building peace through maintaining strict restraint will be given Nobel peace prize.