The thing about organic is that it costs more because the growers aren't able to produce it in the same volume as the big companies that do use pesitcides. But of course they use fertilizers, just not ones that have all kinds of chems in 'em to stimulate growth and so forth.
True organic farming is no scam, but apparently there are a lof of producers out there billing their foodstuffs as organic while still using pesticides and chems and whatnot. There's apparently a grey legal line between what we think of as "organic" and what the FDA considers "organic". Shop wisely.
As for the high costs of eating right...well, it is *your* body, and what you put in it you're going to be. Just eat less if it pinches your purse; everyone can stand to lose a little weight, it's almost Summer.