Among the many imbalances between labor and capital is what happens during detention.
If a laborer is in jail for a year, he loses a year's worth of wages. (Setting aside the other consequences of likely losing his job.)
If a capitalist is in jail for a year, still receives a year's worth of investment growth. He might even be able to change his investment mix if he's able to get a message to his agents.
And a corporate person can't be arrested at all.