Put the most successful CEOs and businesses on the front of magazines. Make television shows, movies, and songs that glorify and praise them.
Tout their extravagant wealth, fame, and power so the people see it everywhere. Make that the conventional definition of success. Get the people to think that climbing the corporate ladder is one of the greatest accomplishments in life.
Idolize the few at the top of the system.
Don't tell them about being flexible. Make it seem like they have to have cable television to stay in touch with friends. Like they have to have the new phone, the new car, the bigger house every 7 years. Make it feel like they're an outcast or a failure if they don't follow this path.
Brainwash them to view money for pleasure, not for freedom.
Put the kids in school. Teach them to follow directions, turn assignments in on time, and receive a reward or grade after they finish each one. Tune them in to doing this for eight hours a day, like that's just how life is.
Make it so once they leave school they think their learning is done. This way they will come to you or another business when they need something done.
Once they are working give them two weeks off a year just so they don't revolt. A time where the slaves can have free recreation.
They'll be so tired from work at this point that they'll spend thousands to travel to far off places with all inclusive stays (those vacations the advertisements make seem normal). It'd be the best way they can recharge their batteries.
They'll spend any of the money they saved during that time, so they have to come back to make more.
Oh, and tell them there's an age they can look forward to when the mandatory work stops. Make it 65 so you have them for 40 years. Their 40 most productive years.
And then if down the road your business gets in a tight spot for whatever reason just let them go. But don't worry. They won't want to leave.
They will beg you to come back.