One of the effects of the Cuban Missile Crisis was to test or prove the diplomacy and bargaining powers of both Kruschev and Kennedy. The (outdated) missiles in Turkey for the removal of the missiles in Cuba.
A second effect of the Cuban Missile Crisis was to continue the spy sattelite programs because of the effectiveness of the surveillance and proof positive that missiles were on the bases in Cuba. The space was serious and in earnest. The efforts to use spy cameras in space and on airplanes gained momentum.
Finally, because neither side in the Cuban Missile Crisis had absolute assurance that the thing would not escalate into a shooting war, the leaders had to establish trust through secret deals and assurances. This may or may not have undermined the public trust, but it did avert impending doom and nuclear war.