Maybe those guys are awesome and everybody else kind of sucks?

I mean, sure, its possible those rewards are way out of proportion for how cool those characters are. But...I haven't seen anybody present evidence to back that up. (Ignoring for a moment that it may not be fair of me to expect someone to present "evidence" for something that is inherently subjective).

Of course, another argument would be "these rewards are so awesome they'd be out of whack even if {insert character} were the coolest person ever in the history of CF". Some people may be making that argument, in which case "how cool these characters are" is mostly irrelevant.