Are those relationships really trusting then? Or is it an optimized way that catches fraud before it is too bad while reducing the increased expense of avoidin

Are those relationships really trusting then? Or is it an optimized way that catches fraud before it is too bad while reducing the increased expense of avoiding fraud? If you have to get all expenses approved before they are charged to the card, then it adds much more overhead and planning which decreases efficiency. The amount of fraud that happens by letting someone charge things and verifying it later ends up being a smaller expense than the amount of preplanning. Similar with interviews. The amount of time wasted by interviews of someone who doesn't pass a background check is a small cost than the cost of doing interviews of everyone before doing a background check (not just the cost of the background check, but having a longer interview process leading to missing out on candidates and more candidates getting part the way through the process and dropping out because another place gave them an offer). Imagine a father trying to "trust but verify" the paternity of their child. If there has to be verification, it will be taken as a lack of trust.