I think you're incorrect on this. The level of intrusion here is much greater. There is a reason why video phones never really replaced voice: they are too revealing. This borders on voyeurism.

Remember the stories of TSA agents joking about what they saw on full body scanners? I don't believe it is credible to think that these types of photos aren't used in a similar fashion here even though it's a different country and agency. And that's actually the least damaging way they could be used.