Whether or not those traits are currently caused by genes in practice, it is certainly possible for genes to arise that would cause them. Admittedly, for some

Whether or not those traits are currently caused by genes in practice, it is certainly possible for genes to arise that would cause them. Admittedly, for some of those traits the mutation required might be too complicated to be on a relevant time scale. But things like poor impulse control could easily be caused by a mutation (brain injuries can cause poor impulse control, so a mutation that damages those same circuits also could), which would be transmitted and potentially selected for.