Or more likely, the thief just resold the stolen bike for $10, thus negatively impacting the economy (preventing legal resellers from operating fairly; forcing

Or more likely, the thief just resold the stolen bike for $10, thus negatively impacting the economy (preventing legal resellers from operating fairly; forcing people to spend more money and effort on protection; minimizing the efficiency of the person having the bike stolen; raising insurance premiums) and the ecology (steering people towards cars, which are harder to steal, at least without insurance; forcing people to re-buy bikes and stolen goods). Proper wealth redistribution is not stealing, at least not this kind of "petty stealing".