Why ‘Not Drinking’ Cost Tim Denning a Promotion: An Examination of Corporate Culture

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Tim Denning

LinkedIn Author

Aussie writer with 1B+ content views in 12 years | Teaching high performers to build million-dollar digital businesses | Let’s connect: tim@timdenning.com

In a recent LinkedIn post, Tim Denning shares a personal account of how his decision not to drink alcohol at corporate events may have cost him a promotion, offering a critical look at unwritten rules and cultural expectations within the business world. Denning, a prominent voice on entrepreneurship and personal development, uses his own experience in banking to illustrate how adherence to social rituals can sometimes overshadow actual job performance.

The core of Denning’s narrative revolves around client dinners, a common practice in his former banking role. He recounts how the expectation was to partake in drinking, with senior colleagues often continuing with whiskey after meals. This was presented as a key method for building relationships and closing deals. However, Denning chose a different path.

“I ordered lemon water.”

This simple act, as Denning details, led to a conversation with his manager who relayed client feedback that he seemed “distant” and needed to “loosen up.” Denning emphasizes that his refusal to drink was a personal choice, not a sign of disrespect, but it was perceived negatively.

The Unwritten Rules of Corporate Advancement

Denning argues that corporate environments are often governed by unspoken rules that can significantly impact career progression. These rules, he suggests, extend beyond job competence to include participation in social activities that foster a sense of camaraderie and belonging.

Social Rituals Over Performance

He highlights the pressure to conform to these rituals, such as laughing at a boss’s jokes or staying late without specific tasks, and importantly, drinking with clients. Denning points out that failing to participate can lead to negative labels like “difficult” or “not a team player.” This, in his view, can result in individuals who are less competent but adept at these social performances being promoted over more skilled colleagues.

“I watched people get promoted for years who were worse at the actual job than I was. They just knew how to perform the social rituals.”

According to Tim Denning, the promotion he was passed over for went to someone who excelled at the social aspects of client interaction, including drinking, rather than someone whose job performance was objectively stronger. This experience led him to question the metrics by which success is measured in many corporate settings.

Challenging a Culture of Conformity

Denning reflects on his eventual departure from the corporate world, framing being fired in 2019 as a catalyst for positive change. This event allowed him to escape environments that he felt valued superficial conformity over genuine competence.

“The idea that ordering water makes you less trustworthy or less capable is a sign of a broken culture.”

He contrasts his past experience with his current entrepreneurial endeavors, where the focus is solely on results. As Tim Denning notes, in his current ventures, there are no mandatory social events that could lead to judgment based on personal choices like drinking.

Choosing Autonomy Over Conformity

Denning concludes by presenting a choice for those feeling stifled by similar workplace cultures: continue to play by rules that may not align with their values and strengths, or build an environment where they set the terms of success. His personal choice was the latter, leading him to a path where work is judged purely on outcomes, free from the pressures of social conformity.

“If you’re stuck in an environment that judges you for the wrong things, you have two options. Keep playing a game you’ll never win. Or build something where you make the rules.”

Tim Denning’s post serves as a commentary on the often-invisible barriers to advancement in corporate life and encourages a re-evaluation of what truly constitutes professional merit.

📝 About This Content

This article is based on insights shared by Tim Denning on LinkedIn.

📅 Originally posted on March 5, 2026 | View original post on LinkedIn →