The Big Plastic Count

I'm probably going to get a load of flack here, but what's the difference between authorities recycling plastic waste by incinerating it for heat,and me using a small amount  of my plastic waste to light my woodburner?

I wouldn't put any plastic on a fire at home as the chimney stack isn't high enough. I use 2 sheets of newspaper (don't buy a newspaper these days so use free ones from supermarkets but need to be economical with it), some pieces of screwed up cardboard and a few twigs to start a fire.