Some forum users tend to rate one account over the other I don't know why they do that but for me, I think all forum accounts are equal regardless of whether you are a campaign manager or not.
But this account in particular may have been somewhat of interest to the proposed buyer; he is an account farmer who wants to abuse the merits source status of the account using it to farm other accounts.
In conclusion, I still will say that the worth of the account depends on the buyer and the seller but in this forum, we frown at account selling because of its potential negative usage onward after it changes hands.