You may also develop a commercial product and still care about it. Profit does not mean a product is doomed to be milked. Its the attitude of the business towards that product. In case of Parse, I always thought they would strongly grow into an independent companny. Maybe bought by someone else, though not Facebook.

Another point is that developing businesses as products is aslo neccesary. This allows bigger companies with cash flow but without the talent to simply shop around for their next offering.