The requirements around scaffolding are kind of an annoying middle ground of rent seeking. You are required to put them up, but then you aren't charged enough for them while they are up to incentivize anyone to take them down. In some cases the scaffolding goes up and the company that owns it goes out of business or the contractor goes bankrupt and it just gets left there.
For years they would leave the scaffolding up so they sell advertising on it and the fine was laughably small compared to the revenue generated from selling ads. That was outlawed a few years back though.
