Employees are very much interested in the total compensation package. If you believe money is not important then let me tell you about a bridge I'll sell you in San Francisco. It is much easier to manage a business where employees take an interest in their work and their company. The strategy goes from plugging holes to getting things done. By promoting learning and demonstrating how it can improve productivity an initial momentum will be gained.
Good employees get excited about the opportunity to learn.
By focusing on the process mistakes are less likely to be repeated. Astute managers want all their employees to learn. These managers understand that learning influences many areas of performance. The true professional never stops learning. They cross-train and make certain that vital skills are not limited to certain key employees.