If catholicism where true, why can other religions religions perform exorcisms effectively?

When you hear about exorcisms in the united states, it normally involves a catholic priest rebuking a demon in their god/ prophets name. why would exorcisms be just as effective in primitive african and south american tribes where the religions are completely different? do you think the exorcism should be effective if the demon is being rebuked in the name(s) of 'faulty' gods and prophets? do you think claims of possesion and the exorcising of demons is just a religious behavior, and thats why it is irrelevant what religion is being used?