While the Socs are presented as a wealthy and privileged group, their individual reactions to Bob's death are not explored. It's possible that some Socs might have felt remorse or sadness, while others might have remained indifferent or even felt justified.
The novel primarily focuses on the emotional turmoil within the greaser gang, highlighting the consequences of violence and the devastating impact of Bob's death on the lives of those involved. The Socs, while responsible for the tragedy, are portrayed as a monolithic group whose individual reactions are not fully explored.
Therefore, it's difficult to definitively say how the Socs reacted to Bob's death as the novel does not delve into their perspectives. However, it's safe to assume that the event caused ripples within their social circle and likely sparked a range of reactions, both personal and collective.