The safety of plugs is a non-issue. Regardless of the design, people dying from household electrocution AND specifically caused by the plug/outlet themselves is nil. System-wide alternatives exist (such as GFCI in the US or any leakage protection circuit breaker) as well as the mandatory ground/earth connection in installations, general education and improvements in materials and quality of plugs.
Obviously that anything can be circumvented and the flood of low quality products also compounds the problem. But even with all these factors in place the obsession with "safety" has very diminishing returns. I come from a country where the same "Saudi Arabia M.O." mentioned before is used at large, ground/earth is a russian roulette and people stubbornly still manage to be alive. Heck, we shower with a 5kW (typical) electrical powerhouse in our heads (mostly unearthed) and people still refuse from dying.
One thing is certain: a great deal of money can be made by promoting fear. Some 10 years ago Brasil adopted a new standard of outlets and plugs that was sold to the general public as one of the safest options in the world, but at the great expense of the general population that had to foot the bill in replacing/changing their appliances and household outlets but without a serious enforcement of the existing national electrical code standards. Guess which one is cheaper from a government perspective?