They came from a different time when we didn't care about the lives of construction workers. We have unions now to protect workers' rights and we have regulations and code to protect people living in these buildings.
That's why they say regulations are written in blood. People have lost their lives so that we can have the rules and regulations that keep our standard of living so high.
We need more regulation, not less. OceanGate has just reminded us of that. We should take five souls worth of lessons to heart.