While that, in fact, does happen, when a large portion of loopholes benefit corporations are written by people employed, or otherwise invested in, those corporations you would have to be lying to yourself, or ignorant of the situation, to believe loopholes are generally unintended.
The above is one example of how this is done. Bills are written to model what the industry wants to get out of legislation. Then they use LLMs to construct legislation after being trained on those models. They then collude to push these bills to as many places as possible, greasing palms the whole way. Sometimes these are just out-right legislation for the purposes of enriching the industry, more often though they are bills written with carefully designed language to allow for specific technicalities, or for stipulations of compliance to be so vague as to be unenforceable, or to use a bunch of jargon and complex linguistics to make a law read one way to the laymen, but another to the professionals that will actually be interacting with these laws.