You have not mentioned what Country you are working on, so if it's not for Canada, please try to extrapolate.
The Remuneration Statement is build through 4 different Forms.
Note that I got similar results for Country code 10 (UJT1, UJF1, UJD1, and UJS1).
The first form is the Header, probably gives general information about the Company, the Payroll Accounting Area, the Payroll Period, and other similar "high level" information, but it should have no links to any Wage Types.
The second form probably gives some Master Data details for the Employee (IT0001, IT0009, etc.)
The third form give the WT details for the employee (Earnings/Deductions/EmployerContributions). Here, the WTs are set-up in Windows and linked to Line Types, Cumulators, etc.
The fourth form enables to make sums of WTs. It shoud basically mirror the Details form, but it does not have to do so for all elements, and Cumulation ID **** will hold no "Operands".
Note that there is documentation available on this site (and elsewhere on the web) regarding the configuration of the Payroll Journal, but to answer your query, yes the 'ROTH Employer contribution' included in the ER paid window of Employee data excerpt form should also be included in the Sum form if you want that WT to appear in the Summaries.