I think these suggestions and comments by Morien are interesting and easily applicable (as usual: thanks Morien!).
In particular, I tend to play with very few PKs (1 to 3), and of course a 1-PK party cannot compete internally, while competition within a 3-PK party is quite limited in scope... Moreover, I'm a big fan of collaborative, non-competitive play (it was my main reason to start playing RPGs, back in 1984...).
Although not strictly needed, maybe some form of these suggestions could be included as alternate rules in future iterations of the book (hint, hint...)?