All this high flying talk no doubt will have some truth to it, but at the sales end of any product or service, the client's decision is very much influenced by the personality selling.
How many times have you said, "I didn't buy because I just didn't like the guy".
A couple of years ago I was pricing a job up against a much bigger competitor than me. Their quote for the monthly clean was a third cheaper than mine! You can think what you like, the client chose me, because they didn't like the look or attitude of the "big boys".
There are huge companies selling and fitting kitchens, double glazing, bathrooms, bedrooms etc. But many many people search for the skilled man on his own, and always will.
Go, take over the world if you want to. You can only eat and drink so much, you can only wear one pair of shoes, you can only sleep in one bed and it could be the most luxurious bed in the world, but if you got to it by carving up business from the little men and by being greedy, your night's sleep won't be much more comfortable than someone who sleeps in the gutter