If the PAD really wanted a useful role then they should try a bit of election monitoring to spot every time the PPP or their cronies pay for votes. Infiltrate the Issan village headman system...pay large bounties for solid evidence of corrupt activities. Report all findings to the EC.
Voters found accepting bribes loose their voting rights for 5 years. No appeal.
Village headmen who are found to be corrupt are convicted and imprisoned and loose voting rights forever. No appeal.
Then the EC should scrap the current system of red and yellow cards...what a joke that is. Red cards only. Any hint of corruption and you are banned for 5 years. The particular constituency election is re-run with the original candidates minus the offender, whose party is not allowed to be represented. Succesful election corruption cases result in convictions through the courts and jail time for offenders.
Expand that rule....over 50 candidates for any party found guilty of corruption and the whole party is disbanded and banned...
all members, including immediate family such as brothers, sisters, dogs and cats....all banned.
No political lobbying activity for five days before elections...no boozy parties the night before etc....voters can drink if they like, but may be subject to breath tests at poll stations....smell of booze...loose your vote. Turn up in a party bus....loose your vote.
Serving politicians found guilty of corrupt activities - 10 years in jail and all voting rights withdrawn for good, lifelong ban in politics extends to all family members.
That might just weed out the vote buying and corruption....and might just save a democracy that is in its infancy.
will they do it? will they hell....this is the land of mai pen rai.

"Science flew men to the moon. Religion flew men into buildings."
"To sin by silence makes cowards of men."