Yes, because the more trusted a campaign manager, the more expensive the hire price will be, so a careless project can't easily do that. But that cannot be a benchmark, research on a project must be done even though it's running by campaign manager like that.
even some managers who have great trust are not enough, because they have also promoted a project scam, and have not paid, it is bad for the manager's good name. from now on, bounty managers should really think about choosing a good project.