Grass fed beef is not going to save your guests from a typically awful industrial-diet-based O6/O3 imbalance. Unless they're eating at your house many nights each week, your single meal is a drop in the bucket. For many households (like mine) highest-quality pastured animal products aren't always an option budget-wise, much less for feeding crowds of guests.
I'd say, as long as you're not feeding your guests wads of sugar-coated canola-deep-fried gluten - whole nutritious food (yes, even a serving of slow-cooked conventionally-raised dry-rub-BBQ pork, or conventionally-produced single-ingredient sour cream on some conventionally-raised beef/pork chili) is OK.
One example for my part: when I am asked to contribute toward, say, a pot luck breakfast buffet, would I use a $4 dozen of high quality organic and/or pastured eggs, or a $0.99 dozen of eggs to make a crustless quiche? My answer is the $0.99 eggs (with conventionally raised sausage and conventionally raised veggies, thank you very much), because that is what most of the folks attending the buffet would buy for themselves anyway, and I am not going to overhaul anyone's diet by spending an extra $3 on eggs and $5 on other ingredients for that one occasion. The foods I contribute for group functions or prepare for large parties/events aren't always the highest quality money can buy, but they are still gluten-free industrial-oil-free real foods, which is a far cry from a box of Krispy Kremes on a pot luck breakfast buffet.