1. He is a man of simple habits and limited intellect: Holmes observes Wilson's routine, noting his predictable schedule and lack of intellectual pursuits. This indicates that Wilson is not a complex or sophisticated individual, making him an unlikely target for a grand conspiracy.
2. He is easily manipulated: Wilson's eagerness to join the Red-Headed League, despite its strange and seemingly pointless purpose, reveals his gullibility and eagerness to be part of something special. This makes him a prime target for someone wanting to exploit his trust and innocence.
3. He is deeply loyal to his family and business: When Wilson discovers the deception of the Red-Headed League, his main concern is not the financial loss, but the threat to his business and the well-being of his family. This highlights his strong sense of responsibility and his desire to protect those he loves.
These insights into Jabez Wilson's character help Sherlock Holmes understand the motivations behind the Red-Headed League scheme and ultimately unravel the mystery.