Uncovering Strategic Egoism Behaviors in Large Language Models
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arXiv
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| Format: | Preprint |
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2025
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| _version_ | 1866917083055390720 |
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| author | Zhang, Yaoyuan Liu, Aishan Ying, Zonghao Liu, Xianglong Liu, Jiangfan Xiao, Yisong Zhang, Qihang |
| author_facet | Zhang, Yaoyuan Liu, Aishan Ying, Zonghao Liu, Xianglong Liu, Jiangfan Xiao, Yisong Zhang, Qihang |
| contents | Large language models (LLMs) face growing trustworthiness concerns (\eg, deception), which hinder their safe deployment in high-stakes decision-making scenarios. In this paper, we present the first systematic investigation of strategic egoism (SE), a form of rule-bounded self-interest in which models pursue short-term or self-serving gains while disregarding collective welfare and ethical considerations. To quantitatively assess this phenomenon, we introduce SEBench, a benchmark comprising 160 scenarios across five domains. Each scenario features a single-role decision-making context, with psychologically grounded choice sets designed to elicit self-serving behaviors. These behavior-driven tasks assess egoistic tendencies along six dimensions, such as manipulation, rule circumvention, and self-interest prioritization. Building on this, we conduct extensive experiments across 5 open-sourced and 2 commercial LLMs, where we observe that strategic egoism emerges universally across models. Surprisingly, we found a positive correlation between egoistic tendencies and toxic language behaviors, suggesting that strategic egoism may underlie broader misalignment risks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2511_09920 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Uncovering Strategic Egoism Behaviors in Large Language Models Zhang, Yaoyuan Liu, Aishan Ying, Zonghao Liu, Xianglong Liu, Jiangfan Xiao, Yisong Zhang, Qihang Computers and Society Large language models (LLMs) face growing trustworthiness concerns (\eg, deception), which hinder their safe deployment in high-stakes decision-making scenarios. In this paper, we present the first systematic investigation of strategic egoism (SE), a form of rule-bounded self-interest in which models pursue short-term or self-serving gains while disregarding collective welfare and ethical considerations. To quantitatively assess this phenomenon, we introduce SEBench, a benchmark comprising 160 scenarios across five domains. Each scenario features a single-role decision-making context, with psychologically grounded choice sets designed to elicit self-serving behaviors. These behavior-driven tasks assess egoistic tendencies along six dimensions, such as manipulation, rule circumvention, and self-interest prioritization. Building on this, we conduct extensive experiments across 5 open-sourced and 2 commercial LLMs, where we observe that strategic egoism emerges universally across models. Surprisingly, we found a positive correlation between egoistic tendencies and toxic language behaviors, suggesting that strategic egoism may underlie broader misalignment risks. |
| title | Uncovering Strategic Egoism Behaviors in Large Language Models |
| topic | Computers and Society |
| url | https://arxiv.org/abs/2511.09920 |