We are constantly gambling all of the time that we might have some external effect on the world, it's the human condition.
Generally we distinguish between overtly dangerous behaviours that could have easily been mitigated (e.g. drinking ten pints and going out for a drive), and behaviours that happen to be kind of a little bit dangerous but aren't explicitly malicious (e.g. just driving under normal circumstances).
The difference here with coronavirus is that for whatever reason, some people decided to apply a completely unreasonable standard of assuming that anything anyone did ever was a malicious act, which is completely incompatible with civilization. If we didn't have all of the exceptions for the proles (sorry, "essential workers"), society would have completely fallen apart.