CEVAP:

Weak States would  benefit from processes, as being co-members with other States  and strengthen their positions in international and regional circles. Moreover, at least being a member and holding a vote power would be quite advantageous especially during important decision-making processes. Last but not least, organizations would give member States the opportunity to put the whole blame regarding the criticisms of third States on the organization and claim that the undesirable decision or policy in question is that of (the other members of) the organization.