Even I was thinking the same, it seems to be a monopoly by Intel to force users to upgrade their PC's to ultrabook which mostly have Low TDP processors and this year even Intel moved a step ahead, they have not released any standard TDP based processor in their i3 and i5 series. So only option left for the people demanding standard TDP processors is i7 series and this year a very few notebook vendors have released standard TDP i7 processor based notebooks.
There is no monopoly on Intel's side, its the Laptop manufacturers which are doing this. As far as not releasing M series processors are concerned, check out i5-4200M, it is there in some laptops in India. It's the companies which are pushing these low TDP processors onto the market as the general buyer has no idea what he is buying, and is happy with having an "i5" in their laptop, or, usually they dont notice the performance drop in applications as not every1 is a gamer