You should definitely talk about it and have a few stories at hand related to
- motivation / drive / achievement
- overcoming obstacles
- leading others (not sure if you are doing this alone or with someone else)
- convincing others (can be customers, suppliers, freelancers you work with, etc.)
MBB always loves to hire entrepreneurial spirits because their core demographic is the complete opposite and mostly risk-averse. It is good to diversify a bit in that respect.
As a general note for the fit interview or PEI interview (McK). Always talk about your victories. There is no benefit in playing it small. :-)
Long story short, definitely promote it and benefit from it.