I think I know what you are trying to say, but proper safety standards, planning and execution of those plans would minimise the risk of any construction accident either happening, or causing death or injury if it did happen.
But your point about a driver causing an accident is good. A construction person can equally cause an accident. Humans screw up; regularly.
On a building site, for example during crane operations, it is normal practice to have a "kill zone" set up where nobody below said crane operations can enter. Someone screws up the tethering of the load and it falls? Nobody dies. Someone enters when they shouldn't? Crane is stopped. Sounds simple? Yes it is. But it needs a culture of safety and accountability to be in place. Does that exist in Thailand?
I'll leave that question unanswered by me.