Told.

Whole wheat bread -IS- a 70 GI. Wheat bread is higher. Bread is a processed carbohydrate, there is no argument about that. It's not complex at all, especially if it's made with white/wheat flour. Commercially prepared breads contain an immense amount of additives including corn syrup/high fructose corn syrup with at least 15 - 18grams carbs in each slice. They also contain trans fats unless otherwise stated, and most of the "nontrans fat" breads are full of it. Marketing scams are very common (i.e. low carb bread). The insulin spike will be there...I can assure you.
Just as Cardinal stated, monosaturated/satured has nothing to do with it. When insulin is spiked, fat cells begin to absorb. Whatever happens to be around that environment will get sucked in and cause fat cells to expand in size. Healthy fats may be utilized as fats are for a certain period of time, and benefit the body to a small extent, but will be stored if not burnt off with exercise in a short period of time.