A program like USC and Denver literally has the entire country applying to them. That is 1500+ applicants for a total of 17-18 spots. Based on charting outcome data from 2016, there are over 200 applicants that had step 1 scores >250 (that is just US MD applicants, it does not include DO). An additional 240 had scores between 241-250. I would imagine more than half of those individuals with scores >250 applied to USC. Of those 100 or so that applied to USC, over half of them will have good SLOEs (based on my experience reviewing applicants, especially those with good scores). That is over 50 applicants that will have both excellent step scores and good SLOEs. Programs, like you, rank applicants based on how much they would like them to match there. On their rank list of 200 applicants, they will likely only fall to 40th-50th spot before they fill. Where do you think they are going to rank the guy with 255 step score and good SLOEs compared to the guy with the 235 and good SLOE? Step scores are the most objective way of sorting through countless hordes of similar applicants with great SLOEs. Unless you have major research under your belt, have connections, or have a major leadership role in an organization like EMRA, you ain't getting into Denver or USC. Every person on their rank list has either amazing step scores, or amazing SLOEs, or for most, both.