People should take responsibility for the effects of their actions, but that goes both ways. For example a local authority that lets the pavements get all uneven so that people trip up, or companies that sell lethal recreational drugs, or supply superheated coffee in collapsible cups.

Is it suggested that they should walk away unchallenged and unpunished, free to keep on ignoring their responsibility for the effects of their actions or inaction?

If the only way things like that get punished and the abuses stopped is because people who have been damaged sue, that's one way. Not necessarily the best way. More often than, when you get down to cases, you'll find that the people being sued have been offered the opportunity to apologise, but have prefered to go to court.