I don't know the full story of Ralph Beard, but most of those guilty of point-shaving admitted to keeping the scores down, not to throwing games completely. (I know this might be a distinction without a difference to some.) That is, if his team was favored by ten points and Beard made sure they won by less than that, he would be a point-shaver, but he did not conspire to make his team lose.
What’s not said:
Point-shaving is done as favors for organized crime, so that they can steal money. The crime done isn’t his done to either team... it’s grand theft against people who made wagers. If Beard tangled for the mob for only $700, it doesn’t mean his crime was less; it means only his soul was cheap.
Perry’s antics were part of the equation when people decided who to root for, and were useless in trying to fix games for the mafia. Dirty? Yes. Mafia-related crime? No.
And there’s the difference.