If a believer receives money that is taken from a government organization, and it is known that the money had once belonged to a Muslim, it is still regarded as being owned by him. One can take this money by intending to take it on behalf of the Marja, and then he can assume ownership of it. It is better to help the needy believers with some part of it.
This is not but one of the attempts to deface the clear image of Islam because of odd actions of some Salafis and those who accuse others with infidelity by raising religious slogans that encourage killing of whoever disagrees with them even if they were Muslims. The relations between Muslims and the followers of other religions in Muslim countries throughout history were based on agreement and cohabitation.