I'm reading two quite distinct issues here - and I think you need to look hard at yourself and decide which one is the one that really needs to be addressed:
Issue 1: you've done something entrepreneurial and been a success at it, leaving you thinking that your calling may be to set up your own business and be your own boss; ie. you're not happy because ultimately you're not doing what you want to be doing.
Issue 2: you're feeling undervalued, as there isn't scope to be promoted in the timescales you feel you deserve - and your experience prior to Accenture doesn't seem to be counting for much; ie. you're not happy because you feel your career is being constrained.
As someone who went into consulting to learn the ropes to pave the way for setting up their own business(es), I would put it to you that you can't improve your lot without really getting to grips with the future direction you want to take - ie. determining whether it is issue 1 or issue 2 that needs to be addressed.
If you want to set up your own business, then your career progression now is basically just a title and a bit of extra cash in your pocket. It's going to have no material impact on whether you're able to set up in business for yourself in the future. I would put it to you that actually having fewer responsibilities in your career and slightly less pressure on your shoulders will leave you with more time / energy to plough into fathoming out what your future business will be. If you set yourself a timescale in which you want to leave consulting and set up for yourself, then you can focus on ensuring that during the intervening year(s) you are amassing as much of the experience and knowledge that you'll need to set up on your own. Staying put is likely to be the best option here, since a change of firm will result in you having to prove yourself all over again at a new firm - and so sap energy you could be devoting to developing your business idea.
If you conclude that actually you are committed to a corporate career, then being promoted enough and ensuring you are on the remuneration fast-track becomes more of an issue - and one that you might tackle in a variety of ways. But I would put it to you that all the remedies here are likely to harm your scope to invest time in developing a fledgling business idea - and so would increase the likelihood of you consigning yourself to a corporate career.
Hope this helps in your thinking.
Tony Restell - Founder, http://www.Social-Hire.com and Co-Founder, http://www.Top-Consultant.com