Except the member in question has another reason for running away with $90, I never thought a senior member's account will compromise his account because of that sum. The time, input, and cost of data used to build this account are far more than the sum. And I believe this will be the assumption of the manager. He never thought a member with such rank will not honor the contract. I don't blame the campaign manager at all because what he did was to motivate participants to put in their best in the review. His action can discourage managers from paying upfront for a project. But I am glad that it is just one member that had this bad record, which means we have more trustworthy members in the forum.
This is just the thing about people and greed; the manager and the project team have done their part by trying to use a few criteria in judging who is qualified to be in the campaign and who is not, but it is obvious, just like you and other members have said, that the user will definitely have other accounts or the account might not be operated by the real owner, if not with such rank and the little reputation the account might have. $90 is very, very small to stockpile the account like that.
But I just hope the member is in some kind of contract that makes him very busy to the extent of forgetting this one, or their country, or whatever area that he might appear to be in is having some internet down time. I just hope the user can come out some day and refund the $90. Maybe the Manager will consider forgiving and all the negative tags will be changed to neutral or removed.