My career - I think - is heading in the same direction (though still early) and I have a severe problem internalizing every little thing and its relative yield to the business. Thankfully I only manage 3 people at a small company, but training alone has been my biggest regret because I know there is so much potential in the team that has been untapped because we haven't invested enough into training (mostly due to my ability to generate and executing training resources and exercises).