1. Charisma and Influence: McGinty exhibits great charisma and the ability to command respect and loyalty from his followers. He has effectively united a group of disillusioned miners and turned them into a tightly-knit brotherhood sworn to secrecy. His leadership skills are evident as he efficiently controls his organisation's activities and instills a sense of fear and obedience among its members.
2. Ruthlessness: McGinty is portrayed as a ruthless individual who is willing to go to any length to achieve his objectives. He does not hesitate to use violence and intimidation to suppress opposition and eliminate those who threaten the Scowrers. His methods are brutal, and he seems unconcerned with the suffering and loss of life his actions cause.
3. Intelligence: Beneath his hardened exterior, McGinty possesses a cunning intellect. He is shrewd, manipulative, and intelligent. His ability to devise intricate plans and outwit his opponents shows his capacity for strategic thinking and planning. However, his intelligence is often overshadowed by his ruthless nature and desire for power.
4. Vengeance: McGinty's primary motivation seems to stem from a deep sense of vengeance. He holds grudges and nurtures a desire for retribution against those who have wronged him or threatened the Scowrers. This burning need for revenge drives his actions and decisions.
5. Tragic Past: Although the story does not delve deeply into McGinty's past, it hints at a difficult and troubled upbringing. The traumatic experiences of his youth may have shaped his character and contributed to his hardened outlook on life.
6. Sense of Honour: Despite his criminal ways and ruthless methods, McGinty does exhibit a sense of honour within his own organisation. He ensures that the Scowrers adhere to certain rules and values, even if those rules involve violence. This sense of honour helps maintain loyalty among his followers and distinguishes him from the typical portrayal of a heartless criminal mastermind.
Overall, John "Buck" McGinty in "The Valley of Fear" is a compelling and complex character. He embodies a combination of charisma, intelligence, ruthlessness, and a sense of vengeance. While his dark actions and methods cannot be justified, Arthur Conan Doyle's depiction of McGinty explores the intricacies of human nature and adds depth to the story.