Sadly, the meaning of Immortals has been diminished with Andrew Jones being one. I would also put Wally Lewis in that category as well, as he is of the same vain as Cameron Smith.
The conditions I would put on who is to be nominated as an immortal is that they have no direct involvement with the game either as a player, coach (FG club level only) or commentator for more that 25 years, as the sway of opinion can be manipulated. As for club administration roles, that is exempt as they are not in the same limelight. Also, that you have not brought the game or yourself in disrepute during your career within the game.
The reason why 25 years, is because if they are still remembered about their accomplishments in restructuring the game, or by other exceptional achievements and abilities, then you have been immortalised by all those who remember those achievements, and there has has been at least a generation or more that have been playing since your involvement.
As for Hall of Fame, they should only be nominated after their playing career (all other aspects are disregarded) and only after 10 years as well.
Thus, it may disqualify several players already classed as Immortals, and also prevents some for even being nominated due to their media commitments.