UserRole ID in VisualForce [closed]

Question

Writing a VisualForce Page for Opportunity and having an issue with referencing the $UserRole.Id. It saves the way its written but its not doing what we need it to on the actual VisualForce Page. It is working for the $UserRole.Name tho :/ .

The code is as follows-

<apex:page Controller="CloseOppController">
  <apex:form>
    <apex:pageBlock title="Opportunity Close Form">
    <apex:pageMessages />
    <apex:pageBlockSection title="Win/Loss Detail" collapsible="false">
      <apex:inputField value="{!opportunity.StageName}" required="true"/>
      <br/>
      <apex:inputField value="{!opportunity.Closed_Reason__c}" required="{!IF($UserRole.Name != 'Sales Ops', true, false)}"/>
      <apex:inputField value="{!opportunity.Reason_Code__c}" required="{!IF($UserRole.Name != '***I have tried both the 15 digit and the 18 digit ID HERE***', true, false)}"/>
      <br/>
      <apex:inputField value="{!opportunity.Primary_Competitor__c}" required="{!IF($UserRole.Name != 'Sales Ops',true,false)}"/>
      <br/>
      <apex:inputField value="{!opportunity.Additional_Competitors__c}"/>
      <br/>

Thank you in advance!