If Buddhists, Hindus, Jews, and all other people on earth can be saved through being a nice person, then there is no point in Jesus.
Playing devil's advocate again... Why couldn't god/god(s) be many things to many people? Maybe he/she/it/them finds it useful to present messages in different ways to different peoples.
It could appear very contradictory to us humans, but again we are placing human restriction on a supposedly infinite entity.