Every person wants to rise, loves good work and there also not any guarantee that every body in this group is employed or at good post. I think Dr has done this taking these points in his mind and showing his helping nature.
I think we should not respond him so badly like shown. he is a 'chief technology officer' might be having very good technical knowledge.
If anybody doesnt like his mail , simply ignore or request him not to put it again. But responding like is really bad.