You can without a doubt take this even further and train it to detect all sorts felonies. The felonies will mainly be simple ones that perpetrated by the lower and middle class. Builder working without a bill? Crosscheck income with an country wide average and their spending history. Nailed. Waitresses working without paying tax? Crosscheck size of establishment with formally employees. Nailed. Of course, this not on…
Why shouldn't crimes perpetrated by lower and middle class be persecuted? The rich already pay a disproportionately large amount of taxes and then society excuses lower and middle class persons from paying their small share of taxes.
How do people come up with these ideas?
Related to their income and overall wealth they pay disproportionate embarassingly little.
The "disrpoportionate" also includes well paid employees in the top 10%, but not the real 0.1% "owning" class. And above a few million worth, the actual money earned per year is usually obscured by all kinds of schemes, of which only the salary and capital gains tax ends up taxed (if that).
And that's without even considering the millions (pun intended) of ways they have to avoid being taxed but still have access to their money, from estates and "charity" foundations they control, to offshores, passing spending as expenses to their companies, special tax cuts, the ease of moving abroad for "tax reasons" at will (no biggie if you have the power to be accepted whether you go, the ability to pay the set amounts to acquire a foreign passport/nationality, to move with trivial for you costs, and so on), and of course access to teams of much better accountants...