Final answer:
The option 'act altruistically to benefit others' is not typically part of a management accountant's five-step decision-making process which focuses on strategic and financial considerations for the organization.
Step-by-step explanation:
When making a decision, the management accountant typically follows a structured procedure to ensure a strategic fit. The five steps usually include identifying the problem or decision to be made, gathering relevant information, analyzing the options, making the decision, and monitoring/evaluating the decision.
However, options provided in the question such as using heuristics to solve complex problems, acting altruistically to benefit others, using cognitive skills to make decisions, and relying on rules of thumb to guide them do not explicitly form part of the structured decision-making process in management accounting.
The option that stands out as not being one of the five steps of a strategic accountant's decision-making process would be 'act altruistically to benefit others' since the management accountant's decisions are primarily driven by the organization's strategic goals and financial interests, rather than altruistic motives.