why dont I have authority to access secret in kubernetes code example

Example 1: kubectl print secret value

kubectl get secret <my_secret_name> -o 'go-template={{index .data "<key_name>"}}' | base64 -d

ex:
kubectl get secret my-secret -o 'go-template={{index .data "username"}}' | base64 -d

Example 2: RBAC in kubernetes docs

apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
  # "namespace" omitted since ClusterRoles are not namespaced
  name: secret-reader
rules:
- apiGroups: [""]
  #
  # at the HTTP level, the name of the resource for accessing Secret
  # objects is "secrets"
  resources: ["secrets"]
  verbs: ["get", "watch", "list"]

Tags:

Misc Example

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