Job creation will surely be a non-issue based on supply and demand. Both are high in California as far as cannabis is concerned.
Profiteering already exists in the cannabis industry in the form of high doctors fees in remote areas and growers underpaying trimmers/using illegal laborers. Those are the two that immediately come to mind just based on the news. Supply and demand of cannabis in CA will be noticed by those that look to profiteer, and as both supply and demand are going to rise, the amount of those looking to profiteer will look towards the cannabis industry for their unethical gains. Hopefully, tax revenue spent on policing and the honesty of others in the industry will keep those kinds of individuals away.