My understanding is it's even dumber than that: NYC sensibly requires building owners to repair failing brick facades, but allows them to put up scaffolding indefinitely until they do. It turns out just leaving up the scaffolding and never performing the repair is often cheaper.
It also gets very very expensive (maybe not in this case specifically). For example in NYC buildings often just leave scaffolding up permanently because it's cheaper to do that than to assemble/disassemble between every job they have to do. I think it's not even clear if scaffolding is that much safer as there have been a number of accidents with the scaffoldings themselves crashing onto people