I'm just throwing ideas around but I thought about it for some time; with background security checks you could create a dating app or shall I see dating environment for upper-class "elite" people to date, something like European aristocracy did back in the day. For example on top of checking their background for criminal past you could also check their ancestry, their monthly income, their wealth etc. or in another words their social status/class. I like to play video games and every time when I think about software ideas I tend to compare them to video games and dating apps remind me of Crusader Kings or something like that.