“Unequal distribution of attention, legitimacy and institutional opportunity”

Let's distinguish all three.

Attention

How much notice something receives.

Example:

Interpretation A is discussed at 30 conferences.

Interpretation B is discussed at 2.

A receives more attention.

Legitimacy

Whether the academic community regards something as a proper or credible scholarly position.

For example:

“This is a serious argument worth debating.”

versus:

“This isn't legitimate scholarship.”

Institutional opportunity

Access to things such as:

grants;

jobs;

publication;

conferences;

research facilities;

teaching positions.

So you could have:

freedom of expression and unequal attention and unequal legitimacy and unequal institutional opportunity.