Fortunately, most local laws in the US require a permitting process where the installer has to demonstrate licensure and/or bonding, so that someone with a defective sense of risk doesn't get people killed. Happy to pay extra to avoid your scenario.
It's the people who don't have money that are at a much higher risk of injury or death due to improper installation and maintenance. It's a definite trade off we make in the west after large numbers of people suffered from lax safety standards. Simply put, if there is no compulsion to be safe, far too many people wont
/me remembers being on a customer site 5 years ago and watching the owner get material off a high shelf by standing on a pallet held up by a fully-extended forklift.
The other engineer and I just looked at each other and quietly minded our own business :-)