Yes, because we desire to do so.
Let's dial back the time machine a few years and take a look at a couple of programs.
1. tu - from '85 to '93 they sucked badly with the exception of '90. I can imagine some sip sitting around wondering if they would ever get to a NC game, let alone win it, considering the sorry state of their program.
2. LSU - God they were awful at the start of the '90s. We used them as a whipping boy to start the season, something they got tired of so they quit our series. So during that time period did anyone honestly see a couple of NCs coming out of that program?
Things change within programs, within competition (see A&M's decline coinciding with OU and tu's rise). Sure, A&M may be under-achieving at this point in time but it does not mean that we will always under-achieve.