That seems a big stretch, especially for the purposes of lumping it in with fire and combustion engines. Being crushed under a wheel has more to do with circumstance than the wheel itself, whereas fire and combustion engines (though the more I say that, the more I realize they're both the same thing) are a negative impact by their very usage.
If we go by circumstance, anything can be a danger, or a non-danger. And the solution is to be more mindful of our circumstances. What we're trying to identify in this thread are the practices that, while being immediately beneficial, are also immediately negatively impactful, even if it took us years (dozens, hundreds, or thousands thereof) to learn about the negative impacts. And following that, to be more mindful of which practices may have similar negative impacts, and be forward thinking about that possibility rather than reflectively regretful.
Many people in history has been crushed, sometimes lethally, under various wheels.