Their should be some stats on each user profile like this:
10 up-votes from person with above 10,000 rep
27 up-votes from person with above 5,000 rep
50 up-votes from person with above 3,000 rep
45 up-votes from person below 1,000 rep
10 up-votes from deleted person.
20 up-votes from inactive person.
OR
20 rep on one up-vote from a person with above 10,000 rep
15 rep on one up-vote from a person with above 5,000 rep
10 rep on one up-vote from a person with above 1,000 rep
05 rep on one up-vote from a person with above 500 rep
02 rep on one up-vote from a person with below 500 rep
OR some thing like above can help.