Please excuse this "science", I went a little overboard, but perhaps you'll find the numbers interesting.
Out of every 500,000 people doing their cardio by going out and jogging, how many die?
http://www.ncbi.nlm.nih.gov/pubmed/6978411
"...or approximately one death per 396,000 man-hours of jogging."
So, if we generalize this data, and assume a lowball 600 calories burned per hour while jogging, we can estimate that jogging causes 4.2 x 10^-9 deaths per calorie burned.
Now, going off of the quoted 3 deaths per 500,000 DNP users over approximately a year's span, 2000 base calories burned per day per person, and a mere 20% increase in calories burned by taking dinitrophenol, we have 1.4 x 10^-11 deaths per calorie burned.
We can then reasonably hypothesize the following:
Per calorie burned, DNP is approximately 400 times safer than jogging at low doses.
Based on these data, if a million joggers jogging one hour a week switched to low dose DNP, not only would 125 lives be saved, but an additional 115,000,000,000 calories would be burned for a total additional fat loss of 33,000,000 pounds.