Its makes a world of difference. If someone has to be awarded the highest position within the Indian Union, he/she must at-least be perceived by the Indian people and the world leaders to be an individual with a clean record.
I don't really see the point of this poll/discussion. Simply because there really is no chance in hell he's going to assume the PMO office anytime soon. Should the BJP come to power ( as they must ), i am pretty confident that they are prudent enough to not field Modi as the prime ministerial candidate. Ideal candidates would be Sushama or Jaitley.
Besides you folks never bother to look at the big picture. If Modi, assumes the PMO office ( hypothetically ), then can you imagine the political $h1tstorm that will ensue ? Muslims would be up in arms. Hindus would be divided ( some for and some against ), Minorities will feel threatened and will adopt a more rigid outlook. In effect , complete chaos.