> It is worth the cost of slower introduction of new materials to take the time to ensure that those materials are safe.

Perspective time.

Global life expectancy is higher than it has ever been at any point in history and many of these materials you want to be "cautious" about (is any level of "cautious" ever cautious enough?) are involved partially or heavily in providing those health advances.

If there's anything we should be "cautious" about it's glib interpretations of subtly complex statistical studies.

I'm also not sure how much the smash-the-system/anti-capitalist hand-waving helps.