How was the toy tinker valued to the Rats of NIMH?

In "Mrs. Frisby and the Rats of NIMH," the toy tinker is valued by the Rats as a symbol of their ingenuity and resourcefulness. The tinker's ability to create and repair tools from discarded materials reflects their struggle for survival and adaptation in an environment that often underestimates them. It represents the blend of creativity and practicality that defines their community, emphasizing their intelligence and resilience in the face of adversity. Thus, the toy tinker becomes a vital asset in their quest for independence and a better life.