You need to make approximately $140k per year to receive the maximum RRSP contribution limit (26,010).  

Whereas the Minister receives a salary of approximately $252,000 and can contribute 19.4% to their person plan (only 50% is paid by them).  So, they can contribute approximately $40,000 whereas regular people can only contribute $26,000 (if you are lucky to have income high enough to max out).