You've been talking about this for at least the 20 years I've been in HR- probably longer.  If it hasn't happened by now, it's not going to happen.  The next time I hear the phrase "get a seat at the table" or "getting a seat at the table", I think my head is going to explode (or at least spin around).   How about you spend less time talking and more time learning about your business and industry; then just apply the knowledge and deliver results.  If you know your business and your industry, don't ask for a seat at the table; just walk in the board room and tell them what they need to know that they don't already know.  You don't have to be seated to be a strategic HR professional; you can do it standing up.

Do it standing up!