What do Jews think about salvation. Who gets into God’s grace and heaven according to you? If righteousness is found in being a Jew, if you care about people and their eternal fate, why aren’t you trying to help people find your view of life and how to live it pleasing to God. Is it a virtue not to care about other people’s spirituality?
The concept of a spiritual afterlife is a man-made Christian and Muslim belief, and doesn't exist in Judaism.
When Jews refer to Mashiach (messiah), it's in reference to the bringer of the Messianic age here on Earth. Life is the greatest gift HaShem gives to us and to focus on physical death leading to a reward is in complete defiance of his Torah.