At what point does it make more sense to tailback on retirement investments?

I had a revelation this morning that I may be doing everything wrong. I have been aggressively saving for retirement since I started working.

Currently 29 with a base salary of 135,000 and 170,000 tied up in stock investments. Most of this in a 403b/457 and Roth with about 25k in a private brokerage. I have only been working for about 3.5 years post graduate school/training.

I also own a business with 2 others, essentially we are able to buy inventory and resell for roughly a 20% profit margin after accounting for wages product costs and supplies. Does it make sense to cut retirement investing down to the match and just invest leftover money into the business to buy more inventory? Eventually we would have too much inventory but at that point we can hire another person to help sell.