With all due respect I think you missed my point. What has Tech done that has truly transcended hip hop and captured the attention of millions? To be in talks of the greatest, it must not just be your die hard fans that think you are so great, cause no matter what, especially in the underground, they automatically think every artist that isnt mainstream is automatically better.
Tech's hustle alone has transcended hip hop imo. He has shown that nonstop hard work in the genre pays off 100%. He has taken touring and hustling his product to whole new heights. He had to to make it. Absolute Power still stands out in my mind as one of the most important albums of the 2000's due to his fu*k The Industry campaign of putting his album up to download for free showing that good music will sell. Off the hook, long a.ss stage performances. I've seen very few live hip hop shows with as much energy as a Tech N9ne show. As for the underground vs. mainstream thing. I choose to stay out of those conversations man because music is music to me no matter where it comes from. The rest of this arguement\discussion is all opinion. My only thing I want for Tech, is as you say here, is to be respected by everybody for what he has done. Wether you like his music or not. I truly believe if he stays on it, and he will, there is no reason Tech can't be discussed with some of the best of all time.