Final answer:
Keane's motivation for changing Valenzuela's name was likely twofold: to bypass potential racism and to gain commercial benefits. This is underscored by historical examples where name changes were used to navigate racial prejudices and to improve economic prospects.
Step-by-step explanation:
Keane's desire to change Valenzuela's name was probably motivated by a blend of commercial gain and an attempt to protect against racism. Considering the historical context, there were several instances where individuals and entities changed names to avoid racial prejudices and enhance their commercial appeal.
For example, African American baseball teams, like the Cuban Stars, employed ambiguity in naming to navigate the binary color line in America, aspiring towards greater inclusion and acceptance within the sport. Additionally, racial fluidity became a way to achieve increased social mobility and participation in public life, as seen with the cédula real in the Viceroyalty of New Granada that allowed mixed-race individuals to attain legal "White" status.
These historical examples illustrate that the act of name changing served dual purposes: it was a pragmatic approach to evade racial barriers and a strategic move to access broader economic opportunities. Hence, Keane's motivation likely encompassed both the practical need to sidestep potential racism and the economic rationale of increasing commercial advantages.