The problem is that you need only one employee without moral concerns but with the necessary data-access and the data you are collecting can be used to abuse yo

The problem is that you need only one employee without moral concerns but with the necessary data-access and the data you are collecting can be used to abuse your customers. At my former employer I had access to cell-phone usage data and for example I could have tracked the calls and geolocation of my girlfriend. Only becasue database grants were assigned automatically to everyone who required them. The only secure way of collecting data is not collecting data at all.