I'd generally say no.
I'm constantly amused by friends who insist on buying organic this, and organic that for home consumption because it's so much healthier than non-organic, and then go out for a meal and eat shitty greasy food. Riiiiiiight. Like the morbidly obese chick who orders the king size candy bar and the jumbo tub of popcorn with extra butter at the movies but then gets the diet soda "to be healthy"...it doesn't exactly cancel out.
Eat predominately healthy non-processed foods, avoid processed and fast food. Congrats, you're in the top 1% of Americans for healthy diet. Incremental gain on going from 100% healthy produce diet to 100% organic produce diet is minimal, but the cost difference can be +100% or more.