It starts with someone who wants to be rich, and has the drive to at least make an attempt at becoming rich.
A very close friend, started his company for $18,000 about 25 years ago. Today, he has 20 employees and does about $6m in sales a year. His profit margin isn't huge, but his employees are well paid and he earns a decent salary, the rest is reinvested back into the business. He has no debt.
From what he pays himself, he is by no means rich. He does own a business worth several million that he could sell and he would be rich, but he likes the fact he is providing a decent income for 20 people.
These are the people who create jobs. 89% of businesses in America have 20 or fewer employees.
To say rich people create jobs is sort of a misnomer, or more like an incomplete statement, but the tax policies that affect the rich, also affect the little guy on his way up. Taxes affect them more than mega corporations. Maybe businesses should have tiered tax brackets like people do. Maybe?