The Nobel committee
can nominate candidates, but they are not the only ones with this privilege. These are the people who are able to submit nominations for the Peace Prize, according to the
Nobel website:
1. Members of national assemblies and governments of states;
2. Members of international courts;
3. University rectors; professors of social sciences, history, philosophy, law and theology; directors of peace research institutes and foreign policy institutes;
4. Persons who have been awarded the Nobel Peace Prize;
5. Board members of organizations who have been awarded the Nobel Peace Prize;
6. Active and former members of the Norwegian Nobel Committee; (proposals by members of the Committee to be submitted no later than at the first meeting of the Committee after February 1) and
7. Former advisers appointed by the Norwegian Nobel Institute.
According to the Nobel website, this numbers about 3000 people. So while you can blame the Nobel committeee for the the winners (which they choose), it seems a stretch to blame them for
every single nominee, when so many people have the power to nominate.