If anyone is going through with an ATIP request, where somehow there can be some proof as to discrimination, or huge refusal rates - rather than jpure anecdotal evidence, they will have to go through the proper channels. While getting in contact with the minister's office and MPs is good, their motivations are political or to get teh issue off their back. The conservative govt. isn't the friendliest to community support of immigrants. Now if there numbers, or proof that showed that visas aren't being assessed properly something can be done, and this si where a minister could simply sign a document and grant the visas - motivation would be that they are proven to be in the wrong, and want to avoid the issue.
some suggestions would included finding out approval raitings for temp workers of other similar countires. As well as all visa refusal raitings pertaining to the DR.
This would have to pass through following branches, International Region, Risk Assesment branch, and Case Management branch.
I wouldnt go as far to call it corruption, but there is reason to believe that there is discrimination - numbers can tell the story better than annectdotes.