Nigeria: Death penalty for poor building engineering?

An interview in a Nigerian periodical with the immediate past president of the Nigeria Society of Engineers states that the interviewee, Kassim Ali, advocates the death penalty for persons guilty of poor building design that leads to fatal building collapses.  Ali stated that poor building design that leads to collapse is a "wilful killing" and the engineers often are not punished.

There are, of course, criminal penalties for structural building collapse for engineers in other parts of the world, and the article suggests that these codes are non-existent or underenforced in Nigeria.  Ali's use of the death penalty in the interview highlights a strongly-held misconception, that the death penalty has a strong deterrent effect.  In addition, his proposal relies on a negligence standard, and I think that a crime of negligence or constructive intent is insufficient grounds on which to base a death penalty charge.