If the development of bitcoin cash is better than bitcoin then it's possible that the price may exceed the bitcoin price
I would agree with you on this but the markets have been getting increasingly ridiculous lately. On the base of it BCC or BCH as it's now termed is a fork with plans similar to that of Dash. Dash has already made countless updates, has a sizeable budget, road map for the future updates, strong development team etc etc. Yet BCC/BCH is now 800% higher than Dash in terms of market capital one day after fork without a decent usable wallet.
Bitcoin Unlimited's plans of on chain scaling whilst are the correct solution cannot be done without incentivised nodes as altruism can only go so far. As the blocks increase in size so does the cost of running the blockchain along with the hardware requirements to run the node.
Why can't the development team see these seemingly obvious issues? I believe it to be greed and they seem to have lost sight of the purpose of why we started Bitcoin in the first place. Not to get rich but to free the world of central banks and fiat currencies.