I would be sceptical that anyone wouldn't want to join the dots if it meant that their most popular product stayed popular and they didnt end up with blood on their hands after many many people died because those dots remained unjoined.

At worst it might be plausible that in a very specific scenario some people knew about enough of those dots that they knew it would be a PITA to go back and make everything right, but they almost certainly didn't know about enough of those dots to actually understand the scale of their fuck up there.

In which case I would say it's still a matter of someone not joining the dots, it's just makes them moderately more culpible, then steeply more incompetent the more of those dots they knew about but still didn't flag as problems.