as long as u are under leadership batch (this is based on being PES A/B and having diploma or A levels), u are being shortlisted for command school (SCS or OCS).
whether u are being selected to enter either of the schools or not depends on your SIT test and even vocational test, including your training performance during BMT (range, IPPT, field camp etc).
dont be so naive that officers are the only ones who care for the welfare of the soldiers. officers are responsible for the men including specialists. they are also responsible if recruits and even specialists under them were to AWOL or has committed any disciplinary actions be it thru breach of military or civil law.
specialists are the ones who report to these officers and the officers are the one reporting to the senior officers, management, military court or even the ministry.
specialists are the ones responsible to train u, not to coax u.
officers are the ones responsible for the company's training outcome.
whether if is your style or not, is not for u to say or decide. if this can be decided by u, when can't enlistees decide whether they can be enlisted or not? similarly, u cant decide if u are born into this world as a male or female.
why can't just take whatever it comes along? unless u do not trust the way how Mindef manages its selection of officers and specialists.
at least for your batch, u can choose the kind of vocation u would like to undertake during your stint. last time there wasn't such a privilege.
conclusion, don't complain.