Some problems I see, so here are my theoretical problems with griefing.
I want to take advantage of other players farming. I plan on killing players farming high tier mats. I will likely become corrupted but what stops a family member from teleporting to me and killing me to reset some of that corruption and eventually all of it.
Or the player killing everyone can simply buy a plot of land in a high value area kill non combatants store loot and armor in house. Let themselves die many times with no gear on/no value lost. Once uncorrupted move gained mats and and move house to new high value location and rinse and repeat. Or even worse, kill a few high value farming players, become too highly corrupted to keep going so drop by the homestead, dump everything, go get urself killed by a friend/ family/ guild member. rinse and repeat not moving house, never worrying about corruption reaping only benefits.
Okay so next what about having a network of guild homesteads in high value locations, rotating corrupted members you use an uncorrupted member to kill those who are corrupted to remove debuff. If IS makes it so fellow guilds camt remove corruption from fellow guild members one could easily use an alliance. Or more likely have a bunch of people pick up the bounty hunter trait in the guild and the bounty hunters "hunt" the corrupted to reset corruption. The network of homesteads allows for the alliance to easily store valuable loot gained from their corrupted players, The bounty hunters feed off the corrupted player. Its a positive feedback loop that would be painfully annoying to deal with. Even if you remove the ability for anyone who is in your guild or your alliance to remove corruption debuffs from you people will just use discord alliances to coordinate removal of corruption with bounty hunters. Again creating money for bounty hunters profit for corrupted players... there is no real downside.
Any way the homestead offers a unique difficulty for corruption. Intrepid good luck

IMPORTANT - This is not asking the question IF the value for the corrupted players or bounty hunters is truly worth it. The game doesn't have enough details or playtime for us to know this, so only respond with further food for thought not "corrupted players wont gain enough from this strategy to make it worthwhile"