In a perfect game system you'd probably make labor income taxes less than capital gains on investment. Yes you want to encourage investment but you also want to feed the economy with monetary velocity or cash money.
The fact is lower/middle class labor income workers put more directly back into the economy than the wealthy "job creators", so who are the real job creators? Demand is the job creator!
Demand comes from people that spend having cash. Capital locked up in hoarding does not help the economy as much especially in downturns. Lower/middle class spend almost all their incremental income dollar while the rich typically spend less than 5% of each incremental dollar. If the lower/middle class has cash then you have demand, demand leads to investment, and jobs/growth.
The fact is lower/middle class labor income workers put more directly back into the economy than the wealthy "job creators", so who are the real job creators? Demand is the job creator!
Demand comes from people that spend having cash. Capital locked up in hoarding does not help the economy as much especially in downturns. Lower/middle class spend almost all their incremental income dollar while the rich typically spend less than 5% of each incremental dollar. If the lower/middle class has cash then you have demand, demand leads to investment, and jobs/growth.