This may sound unfair, but it is a common reality in many office environments. Contributions in the collective do not go straight from contributions to recognition, but must go through an "intermediary station": How others see the results. In other words, effort is only a necessary condition. To make efforts understood correctly and recognized correctly, workers must also know how to make their contributions have a clear shape, have specific traces, and be able to be seen and recounted.
For a long time, we have often been advised that as long as we do well, the results will speak up on their own. That advice is correct, but not enough. In personal work, achievements are often directly related to the performer. But in teamwork, everything is easily mixed up. An initial idea can go through many rounds of editing; a complete plan can be the result of dozens of exchanges; a project reaching the finish line can be quietly handled by many people behind the scenes. When the achievements appear, outsiders often do not see the entire process. They only remember the most prominent signals: Who presented, who signed, who spoke, who stood up to take on the task in the final stage.
Therefore, if a person only diligently works without knowing how to recognize, systematize and show their contributions, they are very easily "invisible" in the overall achievement. It is not always intentional to take credit from others. Many times, it comes from the way the apparatus operates: Leaders cannot monitor every small detail; colleagues do not remember who handled which issue; and the final result itself is often recounted in the shortest, easiest-to-remember version.
Not caring about the process, only caring about the results. This is clearly something we still hear and is partly very true. Of course, making contributions have traces does not mean turning the office into a place where everyone must promote themselves. Common work still needs a spirit of cooperation, sharing and humility. But humility does not mean self-destruction. A person responsible for work also needs to be responsible for the value they create. Because if silent contributions are constantly forgotten, talented people are easily discouraged, truly capable people are easily disadvantaged, and collectives gradually lose the ability to properly assess their abilities.
In an era of increasing competition, professional competence is still the foundation. But besides doing well, everyone needs to know how to preserve the traces of that good process: By measurable results, by clear reports, by transparent exchanges, by letting teammates and superiors understand what value they are creating. That is not competing for merit. That is protecting the truth of labor.
So, I can only say to that friend: Let others see your work before it dissolves into the final product. It's not ostentation. It's helping the truth have a chance to survive after each project is completed.