For better or worse, companies generally don't directly criticize their competitors products and especially won't make claims they're unsafe. That said, it's conceivable that with reforms to tort law, this could be incentivized in a reasonable way.
Call me a sheep, but if your distrust of other people runs so deep that you can't trust any source of scientific knowledge, from within or without academia, I feel a great sadness for you. Some scepticism is always needed but this seems like throwing out the baby with the bathwater.
I'm a discerning sceptic. I trust science that has been proven through successful application. I feel sorry for people who have to read academic papers as part of their job in order to find science that they could apply, partly because that used to be a part of my job and after the novelty wore off it was a miserable task. Science is best paired with real world engineering - academia can do this but the least trustworthy fields e.g. those that rely entirely on modelling, never do.
The fraction of science that can ever be applied to engineering is vanishingly small though. How will you ever get to that kind of standard for things like astrophysics, particle physics, mathematics, most of biology? Do you really think the big bang, evolution, Fermat's theorem etc are bogus because they haven't been proven by "real world engineering"?
I completely agree that there is a lot of bogus stuff coming out, like the perennial "hyper efficient solar cell developed in a lab" press release that bubbles up on HN every now and then. But that is just a tiny piece of science if you ask me. Also blaming 'cancel culture' for this seems lazy , there are misaligned incentives but they are more subtle.
Particle physics has to a large extent become engineering: particle accelerators, nuclear reactors, radiotherapy for cancer. Evolution has been applied many times, most famously, to create SARS-CoV-2 right before it escaped from a lab ;)
As for the rest - well, who knows? Do I trust big bang theory? No, not really. I seem to recall it's inconsistent with various other measurements, hence the need for the enigmatic dark matter. But it doesn't matter or affect my life at all so I can easily choose not to trust it and who cares.
Where the problems start is when activists/politicians force me to "trust" self-proclaimed science that has never been through rigorous market-based mechanisms to weed out the crap. Epidemiology. Climatology. Virology. Standards in these fields are rock bottom low because nobody is at risk of losing their jobs if they're wrong, yet, I cannot simply evaluate this "science" and opt out.
