JosEPh_II
TBS WarLord
Well those would have stronger effect, if you build them all in city with highest base gold output preferably a capital.
Wonder gold modifier is listed separately from buildings, civics, traits and resources.
You can hover over gold in top left in city screen.
As for +crime gold giving buildings AI has stronger discount on units compared to discount on buildings, so it shouldn't be that hard to build few more property control units.
Also crime is less dependent on population for AI than for player.
Trade produces commerce, that can be converted to gold too - that its potential source of gold.
The AI will build those building for the Criminals too. Why because the Criminals are 1.5 x stronger than their corresponding LE units. In fact many Criminal units are equivalent to same level regular Military units or stronger. And the AI will over do it to the point off having escalating Crime levels which opens up even more Bad stuff for the AI. T-brd has addressed some of this, somewhat. The Player if they have

And as for AI reliance on Pop even at Noble level it's still significant factor to the AI. Don't discount it's effects.