I just want to state that in narutoworld most villian are hybrids or they use other oponents for their powers development
Madara wanted hashirama dna to get mokutan because they were equal.
Orichimaru wanted the uchiha eyes and he also did experiment with other people dna to boost his power
Kabuto similar to orichimaru collect dna form different clans to boost his power
Sound 5 ninja had the curse seal to gain power
Danzo collected the uchiha eyes and senju dna to boost his power
Tobi have senju dna ,rinnegan and uchiha eyes to boost his power
Akatuski
Dediara stolen a KG
Kakuza stolen other ninja hearts to live long and maybe there element skills
Special exception
The akatsu they had their own power but most of them where not truely evil.They had their own issues.For example Itachi,nagato and kisame .
Sasuke have gotten his curse seal,he did turn evil but since his curse seal is remove this show (from analysis point of vieww)he no longer be evil.He slowly little by little will turn good.Itachi will take away some of his hatred when he told him the truth.Itachi and sasuke tag team against kabuto also calm sasuke down.Kishimoto intention to remove sasuke curse seal is to make him good,unless kishimoto want sasuke to absorb kabuto into himself to get another advance curse seal / sage mode
What your taught on this
Madara wanted hashirama dna to get mokutan because they were equal.
Orichimaru wanted the uchiha eyes and he also did experiment with other people dna to boost his power
Kabuto similar to orichimaru collect dna form different clans to boost his power
Sound 5 ninja had the curse seal to gain power
Danzo collected the uchiha eyes and senju dna to boost his power
Tobi have senju dna ,rinnegan and uchiha eyes to boost his power
Akatuski
Dediara stolen a KG
Kakuza stolen other ninja hearts to live long and maybe there element skills
Special exception
The akatsu they had their own power but most of them where not truely evil.They had their own issues.For example Itachi,nagato and kisame .
Sasuke have gotten his curse seal,he did turn evil but since his curse seal is remove this show (from analysis point of vieww)he no longer be evil.He slowly little by little will turn good.Itachi will take away some of his hatred when he told him the truth.Itachi and sasuke tag team against kabuto also calm sasuke down.Kishimoto intention to remove sasuke curse seal is to make him good,unless kishimoto want sasuke to absorb kabuto into himself to get another advance curse seal / sage mode
What your taught on this