We will not.
For the owners, it's risk vs. reward. The actual incidence rate of a fire like this is pretty low, when you consider the number of nightclubs around the world. So, they can skimp on fire safety and pocket that money instead, and will probably never have a fire event.
This is why we need fire code, inspections, enforcement, and consequences. Because while the nightclub owner may not care too much about the lives of the people that died, I sure care about mine.
They were never stuck.