For instance: Dell, Overstock et al won't be accepting XMR as a payment method. At best it will be used to purchase illegal stuff.
It isn't really clear that Dell, Overstock, etc. have done anything good for BTC. Yes there are some headlines and a tiny amount of transactions, but ultimately does any of that really matter?
I believe it does as even if the price goes down because of it...there is more awareness of bitcoin.
There is transactional demand for moving funds long distances in short amounts of time with low fees.
That has not changed and companies like Western Union will be gone in a few years from now if they do not incorporate bitcoin into their business model some how some way.