Fred,
I agree strongly with you.
Great results have very often been the result of being stubborn against evidence. The scientists has reached an intuitive belief that a new approach may be valuable, but faces strong “proofs” against it both from own reasoning and from others. For the further progress it may be important that the idea is published, but it would not be possible, if the scientist would not belittle the apparent problems.
My experience from observing other during the 10 years I was active in theoretical physics was that the great new ideas were commonly such that many people had thought about them, but most were too rational to avoid dismissing them. They believed the evidence and followed the standard rules. Those who were able to break the rules succeeded.
I must add that perhaps 99.9% of the cases, where rules were broken do not lead to anything useful. Thus the point is breaking the rules in the right place and that is where the great scientists differ from the good ones.