Is physical harm the only harm that matters?
> Are they on the street now, begging for dinner?
That's not how justice works.
Some crimes need physical intervention in order to protect society. It's just reality. For example, a thief that breaches private property needs to be punished, because not only did he steal, but he also caused a loss peace in society, which affects everyone.
There are, of course, a lot of people walking free who have done far worse things. (The Sacklers, for instance, should all be subject to a combination of prison and utter financial ruin. If the world were just, most of them should be living on the street, right now. Instead, they are making quaint arguments about how a third of their drug wealth is fair recompense, and how their plundered offshore billions should be protected from bankruptcy.)