In finance technology is seen as a cost center, not a profit center. They want the minimum needed to ship. Early on this results in a lot of tech debt. Later on, fixing the system is too hard and thus they need to hire super smart people to figure out the mess they are in for any code change.
Enforcement actions are INCREDIBLY rare. The penalties are shockingly low. Thus the cost of failure to comply is low, and the businesses are not prioritizing compliance.