i observe that the orthodox community is usually very steadfast in terms of either praying, saying tehilim, saying kaddish or doing mitzvot on behalf of someone in their community who is ill or who has passed away. i’m sure usually the bigger or more well known the person is within the community, the more they’re helped in that respect. but even if someone orthodox has no family and isn’t known well within the community, i would imagine chances are more likely that someone would reach out for them spiritually as opposed to an assimilated Jew.
it seems to me that non-religious Jews are the ones who need spiritual help the most when dealing with illness or after death. especially those who have little or no family and maybe are/were more isolated from the Jewish community. i know it is considered a great mitzvah to prepare proper burial arrangements or tend to the grave of Jews who have passed away if they have no one to do so. but i’m wondering if there is a practice within orthodoxy where prayers, tehilim, kaddish or mitzvot are done on behalf of an unknown Jew who is either ill or has passed away. i personally feel there is a tremendous need for this but i don’t know how much this occurs if at all. i feel like orthodox Jews generally don’t seek out to help secular Jews by these means in these types of situations.