To answer your question, sometimes you need to look beyond your initial objective. Measure results should always have some form of redundancy (use more than one tool for analysis).

If you do not see an increase in the objective, reassess it for relevance. Depending on the nature of the conclusion (such as to generate more sales) then you need to make sure that everything in your site is geared toward that conversion objective.

If it is not showing up on the radar in analytics or in your keywords used to find your site, then turn up the heat, if you can find it and the sales or inbound traffic is not occurring, then shift the focus.

No need to obsess over one facet when you could optimize multiple objectives with one site concurrently.