The only solution I see is that we as engineers should put a full stop on shit like this and refuse to deliver low quality or unsafe products.
Let me express my lengthy oppinion.
Lets use the tyre example in an idealistic 0/1 world without considering probabilities and unknowns for simplicity.
An engineer has to fulfill the set of
requirements in "the
best way he is capable of" in a given design.
That is all of his/her obligations to the company, and society, IMHO.
The above mentioned set of
requirements is just a formal list of properties the design should posses. Usually this is given in a form of a test scenarios. For example:
- load 600kg.
- speed 150km/h
- distance 100kkm ...
etc.
An engineer/designer is not responsible for preparing the set of these requirements.
If he designs above tyre based on the requirements provided and the tyre fractures at 160km/h killing someone then you cannot put a blame on an engineer for that. It might be a suicidal customer or it might be that a marketing department advertised it as 160km/h tyre - irrelevant from the point of responsibility of an engineer.
Even if a marketing department calls the project "New technology safer 160km/h design" it is irrenevant in a discussion as the marketing name or its implicit properties do not come into the set of requirements. It neither has to be "new", nor "safer" nor withstand "160km/h" and only the requiremens that state 150km/h matter, not the marketing name of final product.
Sorry to explain that as you were a child but you have to understand that the design neither is based on any public relations matters nor on moraliy but on
science.
Now the
best way listed above does not mean that the design that does not fulfill the good requirements is a bad design. You rarely get to the final design in one step and susually 2-3 iterations are needed and a bunch of tests to get to the ultimate goal. So If an engineer designs a tyre that at intermediate development stage fails at 140km/h tests then again this most likely means he needs to tweak some parameters of the design. Again, if that preliminary design is shipped to a production and someone dies at 150km/h, it is not a problem of a designer.
You might come to a conclusion I believe an engineer takes no responsiblity at any circumstances. If an engineer designs a product that fails the requirements tests (undershoots or overshoots) and it is evident that with the same resources given (time, budget, workforce, experience etc) it could have been possible to reach the goal but engineer just f#$%^ed up the design by being negligent, and now we have a 200km/h tyre that costs 3x as much as 150km/h should, in my oppinion s/he can be (at least morally) responsible for incurring losses, at most.
This is how you distinguish a good engineer from bad engineer and a good design from bad design.
A good engineer will hit the requirements more accurately and cheaper/faster/better than poor engineer.
It has nothing to do with safety.