Teachers, authors, even speakers are one thing - the pastor of a local congregation is another. If someone is not in an ordained position, if they are by trade a teacher, author, speaker, etc, then however much they do and however good they do what they do, it seems to me, they should be payed commensurate with teachers, authors, speakers, etc, whose subject material is biology, history, economics, etc. It does, however, strike me as unseemly when one's subject material is the gospel message and they millions . . . and keep millions and live like millionaires.
I think the important, crucial issue regarding the local pastor's income is this; the pastor is not paid for services - he is given the gift of a salary by his congregation so that he need not pursue a livelihood on his own but can give all of his time to the ministry of the congregation. It's not like if the pastor starts a Tuesday evening study of of Paul's letter to the Colossians he should get an extra $87.35 a week or anything. He's not getting paid FOR the work he does - he's getting paid (as a gift) so that he CAN do the work that he does.