Often a higher rep means a user has been around longer. As a user gains more rep it's easier to implicitly gain even more from the trail they have left behind because of the abundance of it.
It might be interesting to show the usefulness (or "worth") of a user in addition to amount of points, through some other means.
For example old timer Joe does a decent job,
Joe Blow (1 year) @ 6000 rep.
100 up votes / 50 down votes = 2:1 ratio
but new user Bob provides more useful info
Bob Smith (4 months) @ 1000 rep.
10 up votes / 2 down votes = 5:1 ratio
This is simplified and doesn't calculate correctly by SO rep assignment rules, but you get the gist.
Personally I would love to have the ability to filter on perceived worth. It would be very useful to increase your chances at seeing more experience or worthwhile answers and such.
Note: I'm not being biased because I have low rep scores, because likely I have comparatively low ratios too. ;)
Update: There are other ways and combinations of metrics and events to determine a user's worth so focus on an ethereal worth metric that is theoretically perfect, and not on my simple example that obviously doesn't suffice to fit the bill.
Turned this into a feature request which obviously would need lots of discussion.