I don't know your business too well, but I would be really surprised if that was the motivation for your customers. Most business people are trying to improve productivity in their main business to improve their main business, not make time for a second business. Plus, why would somebody looking to start a startup spend money on expensive software--wouldn't they save their money to invest in the startup?

If the cost of our tool is reasonable and allows deploying faster with a better product, it would make good sense for a startup to use it. We use it of course.