Yes there are plenty of scam projects and they are making troubles for good ideas.
But there are good projects also. Look at the Lockchain for example. Thats a product where you can book hotels 15 - 20 percent cheaper than on booking dot com and even when it is still alpha, you can use it right now and save money, no strings attached. Already 20.000 hotels implemented and another 80.000 this month. That is a real blockchain project.