Set Weights Penalties

Set Weight Penalties races especially in New Zealand for Group 1 Races Mainly. The Clubs are doing this because the Pattern Committee are given races a warning that the race is dropping standard.  Clubs doing this are trying to keep the race Auckland Cup at Group 1 put the set weight Penalties criteria to get a quality field. Example of this is Charles Road has 57kg on Saturday if it was  a Handicap 58.5 59kg on the other hand are horse that is nutured through the grades carries 55kg which only get 2 kilos less from a horse who ran 7th in the Melbourne Cup Is that fair?. Maybe a solution to this a Quality Handicap with Topweight of 58.5 and bottom scale has 52. The System as I see looks like will be the norm.