Have a quick look at Sunday’s Lectionary reading from 1 Corinthians.
Is that similar to supposing that a government epidemiologist, knowing that both he and his grandmother were free of COVID, went to visit her, against the lockdown rules? They were safe, but they’d broken the rules, and his photo appeared in the press. He was sacked from his role by the government. Now that’s a bit hypothetical – you can’t be sure it’s safe – but it seems to me the same kind of issue that we read about in 1 Corinthians. You may think it’s OK, but we’re a community and if it’s not OK for everyone, it’s not OK for you. You’ve got to consider others, lest they copy your behaviour and it’s their downfall. Besides which, our brains seem to be very flexible when thinking of reasons why “it’s OK for me to do something other people don’t do”.