How did the people benifit from Swiss neutrality?
On the other had a lot of international meetings were (and are) held in Switzerland – bringing rivals (USA, USSR (now Russia),China, Iran, Iraq, Israel, Cuba, etc.) together. Nobody can really say what possible conflicts could be cancelled this way… Switzerland is widely accepted a neutral place to meet… not giving advantages to any side. Even if UN headquarters are in the USA, it’s often easier to invite the parties to swiss UN site of Geneva.