As we grow in our careers, we rise in Maslow’s hierarchy. In the beginning, we have a really strong need to express ourselves, be heard, have our way, and be in control.
Over time, this need eases, as we realize it is more important to connect and communicate with our audience. The reason is simple: if you cannot get thru to your audience, you will not succeed, and not rise in Maslow’s hierarchy.
The need for self-expression never really goes away. At the lower levels of the hierarchy, this need is based in fear, self preservation, and ego. At the higher levels, it is based on the need to self-actualize.
Thus, is not necessary to be embarrassed about your need for self-expression. Turn your efforts to convincing others that it is in their best interest to let you express yourself. This will force you to develop communication (and selling) skills. You will turn your attention to applying the more evolved attachment theory in your workplace.