Are you going to ask your employees for their 2% cashback if you reimburse them for a purchase they made with their credit card too?

At the end of the day, it seems more practical to focus on ensuring that they picked the appropriate value product/service. If they picked appropriately, does it matter if the company gives them employee a kickback? Sure, the employee will then be incentivized to get the most expensive thing they can, but this was already the case because it's not their money and they want the best thing they can get away with.